National Council of Teachers of Mathematics

Stay up to date on the latest in mathematics education with the National Council of Teachers of Mathematics (NCTM) iPhone app. The National Council of …

Help Okta reach the target (maximum, minimum, or a specific value) by choosing a path from the top of the maze to the bottom. Seven levels with seven …

Help Okta reach the target (maximum, minimum, or a specific value) by choosing a path from the top of the maze to the bottom. Seven levels with seven …

Create equivalent fractions by dividing and shading squares or circles, and match each fraction to its location on the number line. Check your work, a …

Create equivalent fractions by dividing and shading squares or circles, and match each fraction to its location on the number line. Check your work, a …

Help Okta reach the target (maximum, minimum, or a specific value) by choosing a path from the top of the maze to the bottom. Seven levels with seven …

Challenge Okta or a friend in a duel! Collect cards with the specified sum, and you win. But you better do it before your opponent does! Choose the nu …

Okta challenges you to a duel! Collect cards with a specified sum, and you win! But you better do it before Okta does! Choose how many cards (9 or 16) …

Oh, no! Okta and his friends need help. Help rescue them by transporting them to a safe ocean. How fast can you transport the Oktas? Use your counting …

Oh, no! Okta and his friends need help. Help rescue them by transporting them to a safe ocean. How fast can you transport the Oktas? Use your counting …