Young scholars collect objects to use in a classroom store. In groups, they must place a value on each object and take turns spending their fake dollar in the store. They predict how much they can buy and use addition and subtraction...

Third graders estimate the volume and mass of one marshmallow using appropriate standard units. They design and carry out an investigation to find the average of volume/mass of one marshmallow.

[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to round numbers to the nearest tenths decimal place. [1:26]

Explore fractions and decimals with Tony at the baseball field through these leveled learning exercises.

Only numbers with tenths can get in to the number line party, what's a decimal with hundredths to do? This interactive exercise focuses on using what you know about number lines and rounding to the tenths place and then asks you to think...