OCtober
Standards:
2.OA.1- Use addition within 100 to solve one step word problems involving situations of adding to, putting together, with unknowns in all positions, e.g. by using drawings and equations with a symbol for the unknown number to represent the problem. 2.NBT.8- Mentally add 10 or 100 to a given number 100-900. 2.MD.6- Represent whole numbers as length from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2.... and represent whole number sums with 100 on a number line diagram. Key Questions: - How would you use place value to add _ +_ mentally? How do you know you are accurate? Explain your thinking. - In what ways would you use a number line to demonstrate addition? Explain which of your strategies is most efficient. - What is your strategy for locating a given number on a partially labeled number line? - What addition strategy would you use to solve this word problem: You have 15 crayons and 10 break. How many crayons are not broken? Why did you choose this strategy? |
Helpful HintsnumberWriting numbers can be fun.
Using the math vocabulary at home will help you build your understanding of how numbers work. Expanded Form 400 + 80 + 2 = 482 Word Form: Four hundred eighty two Base Ten 4 hundreds 8 tens 2 ones The students will be able to manipulate numbers by the end of October. This helps to add multi digit numbers |
Mathematical Practices
In this unit we will:
Model with mathematics and attend to precision.
Model with mathematics and attend to precision.