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Reasoning with the Rekenrek
Libro en ingés- Rekenrek.
A teacher’s guide on how to use the Rekenrek (arithmetic rack). Discusses its practical use and how to build number sense and strategies. Also explains addition and subtraction using the Rekenrek. Grades K-2. 47 pages.
Contents Down
List of Used Tools in this book 4
1. Introduction to the Rekenrek 5
2. Getting Started with the Rekenrek 7
3. “One push” 11
4. “We’re A Team” (1) 13
5. “We’re A Team”(2) 15
6. Numeral/Number Matching with the Rekenrek 17
7. Partitions of 10 with the Rekenrek 19
8. Using the Doubles Strategy with the Rekenrek 23
9. Recognizing Near Doubles Patterns on the Rekenrek 25
10. Recognizing Doubles and Near Doubles Patterns 6 to 10 28
11. Part/Part/Whole Relationships with the Rekenrek 30
12. Continuing with Part/Part/Whole Relationships on the Rekenrek 33
13. Detective Game 34
14. 10+ Facts with the Rekenrek 36
15. Non-Counting Strategies for Addition with the Rekenrek 38
16. Subtraction and the Rekenrek 43
17. Subtraction Problems 10 to 20 44
18. Modeling Word Problems with the Rekenrek 46