# Featured

## Index Card Tower CHALLENGE

Posted on May 25th, 2018 by kramer

After teaching the Mathletes how to measure the height of tall objects, or any object for that matter, including trees, buildings, etc., I wanted to challenge them to engineer their own tall structures.

## Clinometer: Finding the height of objects using Isosceles Right Triangles

Posted on May 12th, 2018 by kramer

A clinometer, also called a declinometer or an inclinometer, is an instrument that measures vertical slope, usually the angle between the ground or the observer and a tall object.

## New England Math League Contest (Grades 2-5)

Posted on May 5th, 2018 by kramer

After the children explored the logic questions of the Noetic Learning Math Competition, I had them attempt the New England Math League contest which is given to 4th gradeers and up. So Mathletes in 2-4th grade took the 4th grade test and 5th graders took the 5th grade test.

## Two-Digit Number that Certain Sum and Difference (K-1st Graders Only)

Posted on May 5th, 2018 by kramer

The K-1st Grade classes explored two-digit numbers that had a sum of a certain number and a difference of a certain number. This challenge causes them to think about addition and substraction at the same time and strategically look for patterns.