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Blog Page 62

Download the PDF eBook:
SDE eBook: Ideas for Utilizing Your Rakenrek
(For teaching grades K-2)

Considering using a Rekenrek in your classroom teaching? This eBook provides 18 activities to get you started!

Rekenreks, also known as Math Racks, were developed in Holland by Adrian Treffers to develop number sense, based on 5s and 10s. Rekenreks align smoothly with the Common Core Standards in Math. With the activities included in this eBook for working with Rekenreks, kindergarten students will be practicing every standard in the Counting and Cardinality, Operations and Algebraic Thinking, and Numbers and Operations domain. First graders will work in all standards in the Operations and Algebraic Thinking domain and 1, NBTB.2A and B. Second graders can explore 2.OAB.2, 2.OA.C.3 and 2.NBT.B.B. And don’t forget the all-important Mathematical Practices! Students will be working on Practices 1, 2, 3, 4, 5, 6, and 7!

SDE eBook: Activities with Place Value Strips

Download the PDF eBook:
SDE eBook: Activities with Place Value Strips
(For teaching grades 2-5)

Children’s understanding of place value is critically important to a grasp of number sense. Yet when it is taught as an isolated concept, it becomes just another procedure to be forgotten. Place value is the first unit taught in traditional math text books—then hastily reviewed before testing.

Students need to see how place value is an integral part of computation, estimation, and number sense. Using place value strips, especially in conjunction with concrete place value materials, like base 10 blocks or place value disks, helps students see how place value is the essential component in mastering number sense at every grade level!

SDE tip: folded patty paper for teaching fractions

You’ve taught fractions using paper strips, fraction circles and fraction bars. Yet, your students are still struggling. Patty paper is another fun way to teach fraction concepts. It can be purchased at restaurant supply stores very cheaply, or check with your cafeteria. It’s the square paper that goes between hamburger patties. Students can fold it to learn about equivalent fractions. Fold paper and shade to learn about adding, subtracting and multiplying fractions. The more manipulatives you use, the deeper your students’ understanding of fractions will be.

SDE tip: Adding arts to your Common Core lessons

As your students tackle math, here are a few sure-fire ways to help them learn… and to make the teaching of math more enjoyable for you:

1. As you move to deeper instruction in math, you need to keep parents up to date on the new methods you’re using. Use the video feature on your interactive white board to make a video using the new method and post it on your blog and email it home! Even better, video the students!

2. Want to increase the chances students will complete their homework? Try doing one or two examples in class before you send it home. Parents will be able to see how to do the problem and students will have increased confidence in their ability to do the work.

3. Package your manipulatives for maximum use! Think about what a pair of students will need on a regular basis and store them that way. This will lead to using them more often. For example, I keep my second grader’s place value disks with 15 ones, 15 tens, and 5 hundreds in a bag.

4. Showing manipulatives on your interactive white board is pictorial, not concrete! Make sure all students are actively involved by having them do the same activity at their desk.

5. Do manipulatives drive you crazy? Use rubber shelf liner as a manipulative mat to soften the noise and define their workspace. You can also put a large round tablecloth on the floor, divided into quarters, to give four more students room to work.

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