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- Grade Range
- 3rd
- Rating
Students use manipulatives to add 2 digit numbers, use grouping and trading in addition, and communicate his/her math knowledge about the addition process Full Review »
- Grade Range
- 2nd
- Rating
Students work with two-digit subtraction problem, identify the sums by playing Bingo, and create four subtraction problems for homework. Full Review »
- Grade Range
- 3rd
- Rating
Students engage in a game using visual symbols, auditory responses and tactile stimuli to further their understanding of subtraction. A worksheet imbedded in this plan explains how to teach the game. Full Review »
- Grade Range
- 1st - 2nd
- Rating
Students write and compute two digit addition and subtraction problems. They manipulate number cubes to process the problems. Full Review »
- Grade Range
- 3rd - 5th
- Rating
Students subtract two digit numbers. They check each other's answers for accuracy. Full Review »
- Grade Range
- 7th - 10th
- Rating
Students read aloud and discuss a short story about hydrogen from, "The Periodic Table" by Primo Levi. They relate this story to the use of significant digits and scientific notation in science and then take notes about the topics during a lecture. Full Review »
- Grade Range
- 4th
- Rating
Students add and subtract two and three digit numbers. They write numbers in extended form, observe examples solved by the teacher, solve problems independently and as a class, and complete a worksheet. Full Review »
- Grade Range
- 2nd
- Rating
Students examine how to use mental strategies for addition and subtraction. They look at part/whole strategies for multi-digit problems and define which one would be best used for a particular problem. They use tens frames to solve problems. Full Review »
- Grade Range
- 3rd
- Rating
Students name the components in an addition and subtraction equation. As a class, they are introduced to the concept of trading numbers when needed in these problems. They explain the procedure for checking answers to end the lesson. Full Review »
- Grade Range
- 1st - 2nd
- Rating
Students add two or more number using mental calculations. Given a set of single and double digit numbers, students use rounding and estimation to plan a strategy for adding and subtracting numbers without using pencil and paper. Full Review »
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