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Presentation for the IICC on August 27, 2010

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Assessment in Science through Chemistry Activities : 

Assessment in Science through Chemistry Activities Sarah Boesdorfer

Goals for today : 

Goals for today Some assessment Ideas for the science classroom to help your students learn. What – Idea When – Formative and Summative Some chemistry activities for middle school classroom Take-homes! Resources to find more ideas quickly! Learn some chemistry? Ask the Chemistry Teacher!

Slide 3: 

Is it a Solid? Now that you’re thinking… Have you finished?

Slide 4: 

Solid, Liquid, or Gas?

Make Oobleck : 

Make Oobleck Measure about 2 Tablespoons of cornstarch into your cup. Add 2 large squirts of water to the cornstarch, and stir. Then, add more water drop by drop and stirring each time. Continue to add water drop by drop until the mixture is smooth but not runny. If you’ve added too much water simply add some more cornstarch. Touch and “play with” your “Oobleck”. Record your observations. Solid, Liquid, or Gas? Or a Combination?

Colloids : 

Colloids

Assessment : 

Assessment A little different with students in a class Handout Activate (assess) student’s prior knowledge Right or wrong- Who cares! It’s about using observations to support! “Final” Assessment options: Fix definitions and ID states in oobleck, etc. Find other common colliods, ID states (table, graphic organizer) Give a few new substances, ID “state” and defend reasoning (Paper, Verbal conference, presentation)

A POE activity : 

A POE activity Handout has directions Questions? Activity 2- Don’t taste (hopefully you can answer this part without tasting) Activities 4, we will do as “thought experiment”

Hints/Pointers/Reminders : 

Hints/Pointers/Reminders Observations Don’t forget time (1st, 2nd, … or right away, then a little later) “Nothing happened” or “No change” are valid and useful observations. Explanations Pictures, especially a series of them, can help explain Think about making a chart like below to help

POE Activities and Assessment : 

POE Activities and Assessment Again activate prior knowledge Drawing Pictures Use developed explanations in a new situation Give them a new “experiment” to collect data and use what learned to explain. This case, boiling water which you put a dry sponge over. Explanation Charts/diagrams/flow charts, etc.

Slide 11: 

Some Candy Chemistry But Do Not Eat!

Direction : 

Direction Fill a small clear plastic cup about half full of water. Carefully place one M&M in the cup with the M facing up word. Do not disturb the cup, just allow it to sit on your table for 5-10mins. Take observations periodically over the time. Go on to 2nd activity while you’re observing

M&M Part 2 : 

M&M Part 2 1. Pour room-temperature water into a white plastic or foam plate so that it covers the bottom of the entire plate. 2. Once the water has settled, place 1 M&M in the center of the plate. Be careful to keep the water and M&M as still as possible. Observe for about 1 minute. 3. Record your observations with words and an drawing. 4. Now write five question about what you have observed that you would like to know more about. You may add a few questions from part 1 as well.

Our Questions : 

Our Questions

Where the questions can lead students? : 

Where the questions can lead students? Experiments on solubility. Temperature What dissolves in what? (other liquids work, colors, candies?) Concentration (# of candies, etc) Can be expanded to liquids and gases End with a Challenge Handout Activity from Great final assessment

Activity Topics : 

Activity Topics 1. States of Matter 2. Particulate Nature of Matter- Atoms/Molecules: Do you believe? 3. Solutions or Dissolving Could be used with Properties of Water.

More Assessment Ideas : 

More Assessment Ideas

Think about what students are suppose to learn, the purpose. : 

Think about what students are suppose to learn, the purpose. Demonstrate it Checklist

Other ideas : 

Other ideas Graphic organizers: Venn diagrams- compare/contrast results etc. Create models- draw, build Presentations- present finding to class Grading blessing! “Challenge Lab” – now that you know this, hit the mark. Give students new sample data/observation and have explain. And Don’t forget Formative Assessment

Slide 20: 

Questions? Ask the Chemistry Teacher Anything!