Curated OER
Partition Into thousands, hundreds, tens and ones
An abacus may be old, but it's still a great visual tool. Young mathemeticians look at, study and analyze 8 abacus images. They look at each image to determine how many beads are in each place value. They work with thousands, hundreds,...
Curated OER
Domain: Operations and Algebraic Thinking
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...
Curated OER
The Abacus
The class reads an explanation of the how the ancient calculation tool, the abacus, works. They examine four abacus images and record the number shown on each of them.
Curated OER
School in the Past
School was a lot different in the past. Let your class discover what life in school would be like if they lived in the 1800's. Starting with the ring of the school bell, this presentation shows how kids learned and how they were...
Curated OER
Three-Digit Addition
Students work with hundreds place value, create and manipulate three-digit addition problems, and add three-digit numbers.
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Food Pyramid Abacus
Students investigate the Food Pyramid by constructing a creative project known as a Food Pyramid Abacus. They correlate the color beads withe each food group and the number of recommended servings from each. The abacus is a learning tool...
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Counting with Place Value, with the Abacus
Students study an abacus while counting marathon runners. In this place value lesson, students watch a video segment on how counters keep track of marathon runners to reinforce the idea of place value.
Curated OER
Abacus Work
In this abacus worksheet, students use abacus pictures to determine 5-digit sums. In this fill in the blank worksheet, students write eight answers.
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Understanding: Computing
Students examine how a pebble calculator works and compare it to an abacus. After a discussion on the abacus and pebble calculator and how each works, they construct their own pebble calculators. They determine how to represent...