Sunday, July 11, 2010

Teaching Volume and Surface Area of Cylinders

You want to really give your students incentives to learn how to calculate the volume and surface area of a cylinder? Bring in cans of soda.

--Give them each a ruler and a can of soda.
--Tell them you need both the volume and the surface area of the can or they don't get to drink it
--Watch the percision to which they measure and calculate


Don't like soda or drinks in the classroom? Use paper,

--Have them color it first
--Than tape it
--Than measure and calculate

Using Sidewalk Chalk To Teach Scientific Numbers

Give each kid a worksheet with 5-10 scientific word problems. Have them draw a big square and put their name on it (like it was a real worksheet). Than have them write out each questions and answer it like so

Differences Between Mean, Median, Mode and Range

Simply fold a piece of paper long ways (hotdog for you elementary teachers) and make three cuts. Have them write the word, than the definition than a picture like so

Teaching Probability Of Events (Likely, Impossible, Certain, Etc)

This is an easy way of teaching your students to distinguish between Certain, Likely, 50/50, Unlikely and Impossible

Saturday, July 10, 2010

Pythagorean Via The Bleachers

Notice how the bleachers form a 3D triangle from the side view? The legs would be the height and the base whereas the hypotenuse would be the distance going down the bleachers.

--Giving each of your students rulers have them measure the base and height of the bleachers

--Next, have them estimate the hypotenuse via calculation

--Finally, have them measure the hypotenuse and see how close they were

Create Math Cartoons

You can create films and strips through for free. This would be great for math labs or smart boards. Yet, you can also do this the old fashion way

Staple a bunch of cut up pages (cut to squares) together to form a small booklet. Then have your students write out the math problem like

2x + 5 = 10

--For every page have them rewrite the problem with only slight variations toward the solution.
--Keep doing this till the last page which shows the problem solved
--Finally, flip through the booklet like a cartoon and watch the problem solve itself

Use it a cheat sheet for the test!