ABCya! Soccer Math Estimating
ABCya!

Soccer Math: Estimating is a fun way for kids to practice estimating sums, differences, products and quotients.

ABCya! How Many Marbles?
ABCya!

How Many Marbles is a fun 3D activity for children to practice estimating.

SciGirls Connect: Take It in Stride
SciGirls Connect

The Physical Activity Guidelines for Americans recommends that youth (ages 6-17) engage in at least one hour of physical activity daily.

youcubed: Feet Under the Table
youcubed (Stanford University)

In this task, a group of children sit around a table. Without peeking, they figure out how many feet are under the table.

youcubed: Estimating Dots (K)
youcubed (Stanford University)

This activity is a valuable opportunity for students to think about estimation and making visual justifications related to the approximate number system.

youcubed: How Close to 25 (K-2)
youcubed (Stanford University)

This activity is a valuable opportunity for students to count, visualize number quantity, think about estimation, and to make visual justifications related to the approximate number system.

youcubed: How Tall Is That Tree? (2-12)
youcubed (Stanford University)

How many times have you come across a tree and thought that tree is humongous?

youcubed: Estimating (K-12)
youcubed (Stanford University)

Estimating might sound like an activity from young children, and although it is fantastic for them to estimate how many pieces of candy are in a jar or how many crackers come in a box, older students can also benefit from these and take them to the next level.

youcubed: Feet Under The Table (K-2)
youcubed (Stanford University)

While sitting around the table, ask your student to figure out how many feet are under the table without looking.

Real World Math: Concept Lessons - Oil Spill Estimates
Real World Math

Unfortunately, real world math lessons are sometimes learned from tragedy.

Real World Math: Concept Lessons - Estimation
Real World Math

Two sample problems are included that demonstrate how Google Earth can present estimation problems involving area.

Illuminations: How Many Ways?
Illuminations (National Council of Teachers of Mathematics)

Children extend their investigation of the previous day to include nickels.