Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...

Second graders regroup two-digit numbers and solve advanced subtraction problems with regrouping; students use straw and cup manipulatives to demonstrate how to borrow from the tens place in order to solve the problem.

Students listen to a teacher read aloud of two books about Chinese inventions. They examine some items that were invented by Chinese inventors such as dominoes, an abacus, a silk scarf, or kite. Next, they determine how a compass works...

Learners read two books about Chinese inventions such as the compass, kite or dominoes. They bring in examples of Chinese inventions from home and create a class gallery. They make a compass in class.

This interactive abacus can be used for addition, subtraction, counting, and place value.

This resource has three problem sets to practice subtraction using Abacus worksheet. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions,...

[Free Registration/Login Required] Use the move tool to slide the beads on the abacus back and forth to explain the concept of counting.