Use this activity to help your students work through the meaning of the Pythagorean theorem. Pythagorean theorem experiences are often skill and drill work with contrived right triangle problems. In this activity students work with a visual representation of the…

# Category: Number Sense

## Extreme weather 2020

Use the open number line and our lists of temperature extremes to make signed number operations and absolute value sensible. Students compare record high and low temps (integers) and use absolute value in order to always find the positive difference. Subtraction of negatives becomes obvious in this lesson.

## How many gumballs are there?

## NBA Finals 2020

## Labor Day 2020

## USPS needs help!

## What will supplies costs this year for going back to school?

## Ramen noodle heist

## Do you want to be an NBA virtual fan?

## How big is this hornet really?

## Largest s’more ever!

## How fast will my new puppy mature?

## Does the new “Most Stuf” Oreo have an exorbitant amount of stuf?

## String design, ellipses, and orbital mechanics

Artistic way to encourage understanding of a conic section. Participants physically build an ellipse by choosing two foci and sketching the figure through a loop of string. While stitching an elliptical string design they puzzle about varying the foci spread and the loop length to create more extreme ellipses and are intuitively introduced to the measurement of eccentricity.