Showing posts with label special education. Show all posts
Showing posts with label special education. Show all posts

Monday, November 14, 2011

“How long does it take to eat a Freezie?” -- A Math Inquiry: Blog #42






 Since being pumped up from the Science Teachers Association of Ontario’s (STAO) conference last week, where I was awarded the Secondary Schools Science Teacher of the Year 2011 by Youth Science Canada, I decided to do an inquiry based lesson with my math class today.

Some people may have hesitated before trying inquiry based learning with my math class for any number of reasons:
  • Class room dynamics are unpredictable
  • Each learner is on their own individualized learning plan (IEP)
  • A wide range of mathematical ability
  •  50% of the students are English Language Learners (ELL)
  •  I’ve been out of the classroom for the past 3 teaching days
  • This is a split level math class with KNN9A, MAT1L  and MAT2L students present

No worries! I am confident this will work! The inquiry we conducted was: “How long does it take to eat a Freezie?” For those of you unfamiliar with freezies they are basically frozen sugar water sealed inside a flexible plastic cylinder. Kids cut the top off the plastic, push up the frozen treat and enjoy them – especially in hot weather.
Together we brainstormed all the possible variables that needed to be taken into consideration prior to conducting our test. Here is the list that the students generated:
  • Temperature -- Frozen or liquid
  • How hungry are you?
  • Eating techniques
  • What size is the Freezie?
  • Colour – it was determined via discussion that the students eat their favourite colour faster than others
  • How many do you have? Class discussion revealed that if there was only one freezie a person would be more apt to take their time and enjoy it whereas they would gobble it up quickly if there were lots more available to them
  • Would you be just eating, or eating while talking?

Since I was the holder of the freezies I was able to inform the students that the freezies were currently: 
  •  Frozen
  • Large
  • Various colours
  • They would each get one
  • They would just eat and not talk
Next the students each thought about long it takes them to eat a Freezie and recorded their estimate.
Students were then instructed to pull out whatever technology they had in their pocket and find the timer or stop-watch feature on it. This integration of 21st century technology lead to several teachable moments while the students were amazed that they even  had this capacity on their gadgets, downloaded appropriate apps from the internet and helped each other with this task. Those who had no technology moved to sit with those who did without me guiding them whatsoever.  The collaboration between the students was natural and free flowing! 
Students cut the tops off their freezies, started their timers and sat back to enjoy their investigation. As each student completed their eating task they recorded their time.
By the time all the data was collected and tabulated today’s class was over. Tomorrow we shall move on to analysis. The type of information the students will be expected to extract from the data will depend on what level they are working at. The types of questions that shall be posed range from: “Who ate their Freezie the fastest” to “calculate the mode of the time it took for the freezies to be eaten in our class.”
Because the students are working with data they generated themselves they have ownership of it. This makes the learning task engaging and authentic to them. Learning is fun!

Sunday, March 13, 2011

Special Education High School Students Plan their Own Science Investigation – Post 23

Recently our locally developed science class started a major lab investigation to observe if bacteria will grow on lemons. When we started this inquiry I had no idea this would become the focus of our investigation, everything has been planned by the students while I have enjoyed the status of guide at the side. If you have been following my other blog postings you may realize how remarkable an achievement this is – this combined class of grade 9 and 10 special education students, who are studying SNC1L or SNC2L with me, includes individuals with a variety of disabilities including autism, fetal alcohol syndrome, mild intellectual disabilities and communication delays: all of these students have individualized education plans (IEPs).

In order to facilitate their investigation I provided them with a photocopied set of the Smarter Science framework Steps to Inquiry (set one) worksheets and I had enlarged posters of the framework on the front board for them to refer to. We used the set one framework because it is designed for use with beginning, exploring and emerging scientists.

Step 1: Observing and Questioning (=ENGAGE)


On day one I provided each student with a freshly cut wedge of lemon and told them that I had read on the internet that lemons could be used as a safe and effective cleaning product yet I was skeptical and not everything that one read on the internet was true. I asked them if any of them had ever heard this or tried to clean using lemons. Since none of them had I invited them all too simply take a slice of lemon and attempt to clean an area of the lab countertops. No further instruction was given and each student was left to their own interpretation of this instruction. After they had all made whatever attempt they chose to clean the lab counter with a lemon wedge they were asked to discard the lemon and wash their hands.

Then we went to page one of the Smarter Science framework worksheets to record what we had observed while cleaning with a lemon wedge. The following observations were shared and recorded:
· Smelled lemony
· Wet
· Not a good cleaner
· Worked better if area was rubbed with a paper towel after
· Lemon got dirty
· You needed to rub hard
· It sounded like scrubbing
· Sticky residue remained on the counter tops

Our next step was to think about using lemons as cleaners. Using the key word “wonder” I prompted the students to think about what they were wondering about as a result of their experience using lemons as cleaners. (Note: Half an hour ago none of these students had any prior knowledge of lemons as cleaners but now they had their own personal experience to draw on.) After some initial hesitancy the list of questions the students came up was phenomenal! Each question was recorded, in abbreviated form, on sticky notes by the students while I modeled this behavior for them at the front of the room. (Although the students were invited to record their questions in pictorial form none did, but some required the aid of their scribes.) In no particular order, these are the questions the students wondered about:
Can lemon juice remove paint?
Do people like squeezing lemons?
Does lemon collect bacteria?
Does lemon juice fade freckles?
Does lemon juice cause rust?
Can lemon juice be used to clean a car?
Can lemon juice be used as wiper fluid?
Is lemon juice expensive?
Does lemon juice remove make up?
Can lemon juice get rid of wrinkles?
Will sunlight change the properties of lemon juice?
Can other types of fruits be used as cleaners?

The following day we started with this list of twelve questions that the students had generated. We needed to sort them into three categories: those that could be answered by research, those that could be answered by laboratory testing, and those that would remain speculative. In order to aid with the sorting process I had prepared a “Question Sorter Template” for the students use and also put a copy of the template on the board so I could model for them what we were doing and they could all engage fully. Each question was discussed at length before being placed in the appropriate column of the question sorter template. The students realized that some questions did not fit neatly into one particular category so these sticky notes were placed on the line between categories. (These students’ excel at oral communication so I use every possible occasion to encourage them to share their thoughts aloud. Interestingly, they are especially patient and respectful with the one student who is often tongue tied and requires extra time to process his thoughts and form his words. )
LAPTOP TIME!
Can you believe that I actually have a class set of laptops that not only work but are connected wirelessly to the internet! Wow! I can barely believe in myself but I am thrilled to report that my school board (Ottawa Catholic) has fully embraced 21st century technology in the classroom. Even better these high need students, who have difficulty remembering usernames and passwords, have been taught to have this information, in writing, available to them at all times.

So we logged on and each student got to work researching the answers to our questions. Many interesting and informative answers were found and discussed during this process. At the end of our research process the question that was the most poorly answered, on the internet, was “Will bacteria collect on lemons?” Therefore this became our lab investigation question.
Personally, I was uncomfortable with the wording of this question and prompted the class several times to reconsider what the question said, what they wanted it to say and if a different choice of words would be better but they were adamant that they liked it the way it was so I left it alone. This was their investigation, not mine. Did I want to empower them of dictate to them? Sometimes it is hard to let go!


Step 2 (a) What could we measure or observe about the object, or event?
“Will bacteria collect on lemons?”


Step 2 (b) What could we change or vary about the object or the event that may affect what we could measure or observe?” = variables
We brainstormed and recorded the following variables on sticky notes which were placed on page two of our framework handout:
· Temperature
· Time
· Adding water
· How many lemons
· Where to get some bacteria
· Size of lemon
· Weight of lemons
· Size of jar / beaker
· Where to put them

Step 3 (a) What will we change? (= changed variable)
This step required extensive discussion, debate and time. It could not be rushed or some students would not understand how this was a controlled experiment. Everyone had several opportunities to voice their ideas and opinions. Elimination votes were taken to narrow down the options. Final answer:
The one variable we will change is where we place the jar with the lemon in it and we will measure or observe how much bacteria will grow.
What this meant to our class is that each pair of students would run an identical lab but each group would get to decide the location of their test lemon, in the beaker.

Step 3 (b) What will we not change? (=unchanged variable)
Now we moved the rest of our sticky notes from step 2 (b) over to page 3 of our framework template and decided on what value to give them.
· Temperature = room temperature
· Time = check every day until we decide to stop
· Adding water = no
· How many lemons = one half, cut width ways
· Where to get some bacteria = one cough per group member onto cut lemon in the beaker
· Size of lemon = medium
· Weight of lemons = use an balance and record
· Size of jar / beaker = 1000 mL glass beaker, no lid or cover

Step 4: What is the question we want to explore?
All we had to do now was simply move some sticky notes to page 4 of our template so our question looked like:
“If we change “where we put the beaker” (changed variable) what will happen to “the amount of bacteria on the lemon” (to b e observed daily) compared to our control?”

Step 5: What is our prediction? State how we will change the variable and predict the outcome?
This was my teachable moment to do some just-in-time teaching about using “If . . .then” statements to make predictions. Each student was guided through the process and wrote their own predictions. In several cases they expressed what they wanted their prediction to say and were then helped to form it into an “if . . .then” statement. There was no student who did not have an idea about what they wanted to predict. The students required a lot of reassurance that no prediction was wrong, it was important to make a prediction using the correct format. The only wrong answer was not to make a prediction. Some students found it very difficult to commit to a prediction yet eventually they all did! In general they looked like:

We predict that . . . if lemons are placed in different locations then they will collect different amounts of bacteria.

We think this will happen because . . . (another difficult sentence starter yet everyone managed to write something eventually.)

2. Perform and Record (=EXPLORE)

All the events written about above fell under the “initiate and plan” (a.k.a engage) stage of setting up the experiment and took our class a full week of 75 minute classes to complete. Yet, as an experienced educator, I believe it was time well spent because the students were engaged in authentic, real life learning, they were being empowered to take ownership of their experimental set up and design and they were working collaboratively throughout.

Because we had determined the values for all of our variables during the design process it was relatively simple to set up the experiment. The students knew exactly what to do because this was their lab and they had invested a great deal of thought and discussion into each step.
Observations: Drawing tables in an extremely challenging task for this group of students. Even when I provide them with a ruler drawing straight lines defies some of their fine motor skills. So, today, I decided to try something different. I hooked my laptop up to the LCD projector and opened word processing software. I brought my printer over to my desk and plugged it into my computer. After typing the heading “Observation Table”, I announced, “Let’s design our observation table together.”

Step by step I showed the class how to set up a table and type in the headings. This information meant nothing to many of the students, but was helpful to a few. We made a three-column table with the heading: Date, day, and observations. Everyone got out a calendar while I explained that if Friday was day 3 then Monday was day 6, not day 4! This concept is challenging to lots of my students but for a student whose exceptionalities includes that they have no understanding of the concept of time it is particularity impossible.

Once we were all satisfied with the design, layout and spacing of the observation table I printed one out for each student and they were delighted! Now all we have to do is make our observations each day. Eventually we will stop the experiment and move onto analyzing, interpreting and communicating our answers. You will be able to read about that in 4 – 6 weeks from now. In the meanwhile, I am content to know that this special education class is learning to think like real scientists!







Sunday, February 13, 2011

Teaching Science to the Special Needs Learner -- Posting 19

On Ontario we have two courses that are designed for the student with weak academic skills. These courses are Essentials Science, grade 9 (SNC1P) and Essentials Science, grade 10 (SNC2P). Some schools will refer to these courses as “locally developed’ for historical reasons.

The students in these courses usually have a number of learning challenges. It is unlikely most of them will be success in the Ontario Secondary School Literacy Test (OSSLT). Most of them will probably be except and will be graduating with a certificate, not a diploma. When I am looking for science resources to use with them I usually look in the grade 4 – 5 level.

Now that I am a Smarter Science convert it makes teaching these students more fun than ever! No more cookbook labs. The students are in charge of what they learn and how they learn it.

Here are a few tips:

1. Treat them with respect! This may seem self evident but I have often had students tell me that this was the first time they didn’t feel like a dummy in class. Celebrate their successes, every time! When someone reads something for you tell them “Nice reading”, when someone asks a question respond with “That’s an excellent Question, I am so glad you asked”, when someone asks an inappropriate questions say” “This is not the time for us to discuss that but thank you for putting your hand up”, when someone screws up a lab tell them “some of the best scientific discoveries have been made by scientists making mistakes, you might be looking at the Nobel prize one day”. You get the idea.

2. Stay calm and smile! There will be days when you do not feel calm but the very worst thing you can do is YELL, it will take weeks to earn their trust back if that ever happens. When you are going to lose it do something drastic. One of my favourite strategies is to line everyone up and go to the water fountain. I tell them I need a drink of water and I cannot leave them unattended so they all have to come with me. After this, which will take at least 10 minutes, the atmosphere will have changed and you will be fine. Having a sense of humor cannot be over-rated!



3. They must treat each other with respect! Inevitably there will be a student in the class that believes they “do not belong there”. This may be manifested overtly by calling the class “retards” or more subtly by refusing to work with the other students. They have been put into your class for a very good reason so that is not a point to argue. (These may be learners with terrible attendance issues, major substance abuse problems, home lives in crisis, etc.) Instead, find a time to speak to them privately, maybe after class. Explain to them that you know they have a different aptitude than some of the other students but as long as they are in this class this is how is will be . . . . After they have been recognized by you are “not like the others” they feel better about themselves and they are able to participate in class with their dignity intact. In fact, sometimes when there is a funny question or incident occurring I will give this student a secret wink to let them know that I understand what they are also thinking. Another strategy is to ask them to be a “big buddy” for someone that needs a TA but does not have one.


4. They are “real scientists”! A real scientist has to know all about lab safety and wear their safety equipment at all times. Even if the students are simply boiling water and recording its temperature make sure they wear their goggles and tie their hair back. That is what “real scientists” must do. It’s even better if you have lab coats for you and them to wear. I only have a lab coat for myself but I ALWAYS wear it when we do labs. The kids love this! Gloves are a great idea but due to their cost I only let them wear them when absolutely necessary. Ie handling acids. By the way, simply butting vinegar into dropper bottles labeled “vinegar” for the students to work with makes them proud! Even better if you can let them react it with an unknown substance (baking soda) to create a drastic reaction!

5. Lab safety The most important thing for a science teacher to ensure, in any class, is the safety of the students. With most classes we simply hand out lists of rules. In order to prove that we have done our due diligence this is not acceptable with these learners. In the case of an accident a parent could quickly argue that a student with below grade level reading compression could not possible be responsible for knowing and understanding the safety rules. Furthermore, those parents are right. In order to protect both the students and myself I have developed a Lab Safety Manual wherein all the lab safety rules were illustrated with simple diagrams and the students fill in the blanks (cloze activity) to write the rules out. Unfortunately, my electronic copy of this has been lost in the bowels of one of the many computers I have gone through during my teaching career but it would be a simple matter to make a new one by down loading graphics from the Internet. Depending on the technology and time available to your class you could even use a digital camera and have the kids make their own.

6. Structure, structure, structure! Being in a big high school with different faces in each class, at least four different teachers to contend with, moving through the crowds in the hallway, all these little things that most teenagers thrive on can be overwhelming for the learner in essential level classes. Therefore it is paramount that they know exactly what to expect in science class. By removing their anxiety you have opened the door to learning. Your structure will be determined by you and your classroom set up. Here’s what works for me:

· We keep our binders in classroom.

· Prior to their entry put a short list of what will happen in class on board. This can be super simple. For example:

o Return worksheets

o Discuss today’s weather

o Take note

o Video

o Do lab

o Clean up

A list like the one above can serve many purposes. A common question the students will ask, once they are comfortable with you will be”What are we going to do today?” to which you can reply, “It’s on the board.” Since many of the learners will have weak literacy skills they will help each other read it. This will happen naturally and there will be ad hoc discussion around what it means. Encourage this; it leads to predicting and inferring, both of which important skills for building literacy (See how easy it is to embed literacy across the curriculum!) It also allows for some social interaction which is also something these learners often struggle with. Another important skill you will be teaching by having this short list on the board is “How to use a checklist”. Incredibly this is an essential skill identified by the Conference Board of Canada as being important for employability in many jobs yet our students are unfamiliar with them. As the lesson progresses refer to the list and check things off as they are done. Try to provide the student s with a check list of their own from time to time, for example, as part of a lab procedure, etc.

· I always stand at the door to greet the students, BY NAME. For some of these lost souls their names are all they have, honour them by learning it and using it. If a student is named Timothy and only likes to be called Timothy do not call him Tim, without his permission. This year I had a student named Antonio who insisted on being called TJ, don’t argue, just do it.

· As they enter remind them to pick up their binder on the way to their desk.

· Always have the date written in the same format, on the same place on the board.

· Insist that every single piece of paper be dated and put into the binder, in order by date. This sounds so easy but is a HUGE challenge for these students. You may want to keep an ongoing list of what should be in the binder, in the correct order, posted somewhere in the classroom. Once a week go through the binders together to make sure everything is in order. They can even be taken in for marking. Why? Organization is another essential skill that these students often need to work on.

  1. Notes
I often use notes as a settling technique in my class. The note taking is limited to writing down the date, the title and one sentence. Always print on the board, most of these students cannot read cursive writing. Even one sentence is too much for some of the students. For them I provide a print out with just a couple of words for them to fill into the blanks.

Whenever you do give a note ensure it is read aloud and discussed. If the students simply copy it down they will have NO comprehension of what they have copied.

  1. Print Resources

Do not look for a text book to use with these courses. These students are not about textbooks.

McGraw-Hill has published workbooks and teacher’s guides called Essentials Science 9 and Essentials Science 10. These are excellent!

You may find the useful articles in magazines that are geared to younger learners. Two magazine I have found helpful in the past are Science World from Scholastic, each issue comes with a teacher’s guide and Yes! Science magazine.

  1. Video Resources

These students are not able to watch a video and answer a worksheet at the same time. If you plan to do this you will have to read the worksheet one question at a time, pause the video after each question , re-read what the questions was, rewind and show the answer again, discuss it, write it on the board for them, wait while they copy it down, read the next question, repeat. I’m sure you can see that this will become very tedious. Here’s how to make it work:

Write one question on the board, for example; “At what temperature does water boil?” Before putting someone on the spot by asking them to read the question out loud tell the class that is what you are going to do and for everyone to take a moment to read the question silently to ensure they know all the words – some of the students may use this opportunity to confer with you, a TA or each other is they are unsure of any words. Have a student read the question out. After the question has been read out loud discuss it, either all together, a think – pair – share, whatever works in your classroom. Now you are ready to show a video clip which will answer the question. After watching the video clip discuss what the answer is. Oral communication is key!

Video Clips

This is the way to go! Two minutes maximum! As you know there are a zillion on you tube. Because I do not trust our internet connection at school I always download them onto my memory stick using free software called, Clip Extractor.

Bill Nye videos

The kids love these videos, but there is too much content for them to absorb.

I like to use them to show Bill Nye, or one of his colleagues, doing a lab. Then we do the lab. Or visa versa. We do the lab then watch it on the video. This helps the students feel like “real scientists” because they see other “real scientists” doing the same thing.

Most Bill Nye videos are available on you tube. The New York Teachers website has worksheets for most of them (good for the applied level.)

  1. Labs

This is the most important component of the entire course. This is the “hook”! Do at least one lab activity or one demo every day! This sounds insane but for these students almost anything is a lab. Take the temperature of the cold water from the tap and the cold water from the fridge then compare it. That’s a lab. In fact, be creative! This lab could easily take up more than one 75 minute period.

I like to train the students on one or two key pieces of lab equipment and use them over and over during the course. One of my favourites is the graduated cylinder. Why, you ask? First of all, only “real scientists” use graduated cylinders. Where else do you see them? No one has one at home or in their car. Secondly, I happen to have a bunch of plastic graduated cylinders in my lab. (Glass ones can be very expensive.) Thirdly, they are easy to learn to use. I have an entire set of worksheets on “holding the meniscus” as eye level”. Always wear your goggles! Spills can happen! And finally, measuring out a fluid (I like to use water a lot!) is generally a safe part of many labs in the essentials science course.

This semester I am using the beginning scientist Smarter Science framework to help the students work collaboratively to put their thoughts in order, then design and carry out their own investigations. You can see an example of this on my past three blog postings.

Conclusion

You are a hero if you have read this far! I just have so much to tell you. Instead I will stop now. Send me any questions or comments you may have.

Also, you are welcome to come into my classroom anytime to observe and visit. Maybe we could even plan an activity where we get out classes together.

Hope this helps and GOOD LUCK!