1 / 10

Investigations

Investigations. 10 Minute Math. 10 Minute Math. Think about math at a different time of the day. Today’s Number: The teacher picks a number. Find as many ways as you can to make it. 18 + 11 = 29 2 + 27 = 29 (6 x 5) – 1 = 29 3 + 26 = 29 28 + 1 = 29 (8 x 3) = 24 1 x 29 = 29.

uyen
Download Presentation

Investigations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Investigations 10 Minute Math

  2. 10 Minute Math • Think about math at a different time of the day. • Today’s Number: • The teacher picks a number. • Find as many ways as you can to make it. 18 + 11 = 29 2 + 27 = 29 (6 x 5) – 1 = 29 3 + 26 = 29 28 + 1 = 29 (8 x 3) = 24 1 x 29 = 29

  3. 10 Minute Math • Students more comfortable sharing. • Students learn new ways to complete a problem from peers. “Make 29 with coins” 29 pennies 10 + 10 + 5 + 1 + 1 + 1 + 1 $1 - + + + 1 + 1 + 1 + 1 25 25 25

  4. “Make 29 with coins” 29 pennies 10 + 10 + 5 + 1 + 1 + 1 + 1 $1 - + + + 1 + 1 + 1 + 1 25 25 25 10 Minute Math • You can use 10 Minute Math strategies for posters to post in the classroom.

  5. 10 Minute Math: Quick Images • 2 – 3 seconds for Quick Image on overhead • Forces students to chunk information • Show it to students 2 – 3 times 2 + 4 + 2 (3 + 3) + 2 6 + 1 + 1 4 + 1 + 1 + 1 + 1

  6. 10 Minute Math: Quick Images • Subatizing = visually grouped/ organized together • Associative property= doesn’t matter what order (3 x 3) x 4 (18 + 18) (3 x 4) x 3

  7. 10 Minute Math: Add & Subtract Multiples of 10 • Review: What does “6 tens” mean? (with pictures & discussion) “What can you tell me about 363?” 3 hundreds, 6 tens, 3 ones Multiple of 3 Odd Not close to 1,000 36 tens, 3 ones 865 + 20 = 865 + 50 =

  8. 10 Minute Math: Add & Subtract Multiples of 10 865 + 20 = 865 + 50 = 800 Questions to ask: • What does “6 tens” mean? • What happens when you have 10 tens?

  9. 10 Minute Math: Make it Real 38,459 + 50 = (38,000 people at a ballpark … 50 people came in. Would you notice?) 38,459 + 5,000 = (38,000 people at a ballpark … 5,000 people randomly came in different doors. Would you notice? Big impact or no?) 38,459 + 15,000 = big impact!!! Students ask themselves to check answer: • Visualize number with something real. (Put the problem in context.) • Is the answer reasonable?

  10. 10 Minute Math: Make it Real • 142 in dimes and pennies • DP • 14 2

More Related