1 / 14

A Grade-by-Grade Progression of “A Story of Units”

A Grade-by-Grade Progression of “A Story of Units”. Scott Baldridge Common Core August 14, 2012 Part 1 of 2 (Grades K – 2). Plan:. Step through “A Story of Units” grade-by-grade. Overview Chart. Pre-Kindergarten. Well-planned math program Count to 5 with meaning

gay-berry
Download Presentation

A Grade-by-Grade Progression of “A Story of Units”

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. A Grade-by-Grade Progression of “A Story of Units” Scott Baldridge Common Core August 14, 2012 Part 1 of 2 (Grades K – 2)

  2. Plan: Step through “A Story of Units” grade-by-grade.

  3. Overview Chart

  4. Pre-Kindergarten Well-planned math program Count to 5 with meaning Explore the definitions of circle, rectangles, etc. “How many” up to 10 using familiarity with 5

  5. Pre-Kindergarten Comparisons: small, big, large, tall, etc. Fluency with meaning of numbers 1-10, counting numbers 1-20.

  6. Kindergarten Same themes as Pre-K Numbers 1-10 with “1 more, 1 less” Comparisons: taller than, shorter than, longer than, heavier than—leading to…

  7. Kindergarten • 7 • 4 • 3 • More than, less than: • 7 is 2 more than 5 • 7 is 2 less than 9 • 1 more, 2 more, 3 more than • Comparing numbers leads to number bonds: • 3 is less than 7. 3 and 4 make 7. • Number bonds lead to addition/subtraction

  8. First Grade • 8 + 5 = 8 + (2 + 3) = (8 + 2) + 3 = 10 + 3 = 13 Fluency with add/subtract facts begins right away and continues the entire year Main strategy for adding/subtracting across a 10: “make 10”This strategy begins the realization of…

  9. First Grade A major concept goal for first grade: Group “10 ones” as a single unit: 1 ten Module 3 on length provides a few weeks to practice “making a ten” and also allows for a wider variety of word problems “Add within 40” module establishes 1 ten

  10. First Grade “Add within 100” module begins model work with addition and subtraction of two 2-digit numbers In between these two heavy-duty number modules is a module on shapes

  11. Second Grade The first module on “numbers to 20” is the beginning of a yearlong fluency program on numbers and time The second module on measurement plays a key role in grade 2: it establishes the meaning of the term “unit.” Place value units are the study of the third module. In particular, …

  12. Second Grade • 1 • 2 6 7 • + 2 6 2 9 3 • Place value units are the basis of the algorithms • 7 ones + 6 ones = 13 ones = 1 ten 3 ones • 1 ten + 6 tens + 2 tens = 9 tens

  13. Second Grade 1 apple, 2 apples, 3 apples, ...1 ten, 2 tens, 3 tens, …leads to 1 three, 2 threes, 3 threes, … 4 threes = 12 ones

  14. Second Grade Last modules end with: Money: dollars, dimes, pennies (and nickels and quarters) Analog clocks (curved number line) Simple fractions and clocks

More Related