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Addition

Addition. Set Model of Addition Measurement Model of Addition Rods. Subtraction Models. Take Away (sets) Missing Addend Comparison (how many more) Number line. Multiplication. Multiplication as repeated addition Sets Number Line Rectangular Area. Division of Whole Numbers.

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Addition

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  1. Addition Set Model of Addition Measurement Model of Addition Rods

  2. Subtraction Models • Take Away (sets) • Missing Addend • Comparison (how many more) • Number line

  3. Multiplication • Multiplication as repeated addition • Sets • Number Line • Rectangular Area

  4. Division of Whole Numbers • Repeated Subtraction • Partition • Missing Factor

  5. How many groups? • A ÷ B • 8 ÷ 2 • 8 objects are divided into groups with 2 objects in each group. • “How many Groups?”

  6. Adding & Subtracting in Other Bases 143 five +234 five

  7. Subtract 231 five 434 five 144 five 243 five 32 five 141 five

  8. Convert to Base 10 notation 413 five 2004 five 100 five 214 seven 213 six 415 six 2E4twelve 1TEtwelve

  9. Subtract 231 five 434 five 144 five 243 five 32 five 141 five

  10. Test for divisibility A number N is divisible by • 2 if the last digit is an even digit(0,2,4,6,8). • 3 if the sum of the digits is divisible by 3. • 5 if the last digit is a 0 or 5. • 6 if it is divisible by 2 & 3. • 9if the sum of the digits is divisible by 9. • 10 if the last digit is 0.

  11. Tell which of the following are divisible by 2,3,5,6,9,or10 • 43,826 • 111,111 • 26,785 • 5,280

  12. Finding GCF & LCM by using Prime Power Representation. • Euclidean algorithm. • Venn Diagrams

  13. Integer Representation • Colored counters Black = + Red = - Game keeping score. • Mail Time Representation • Number Line Representation

  14. Addition of Integers • Represent sum of integers using colored counter diagrams. • Mail Time Stories ( pg 297) • Number Line

  15. Subtraction of Integers • Using colored Counters. • 7- 4 • BBBBBBB • -8 - -3 • RRRRRRRR

  16. Draw Diagrams for each of the following: • 7 – 4 • -3 - -2 • 8 - -5 • 7 – 10 • -7 - 3

  17. Mail Time Stories • Pg 317 • Multiplication • Division

  18. Order of Fractions • a/b is less than c/d if and only if ad < bc. • Mickey Mouse. • Fraction strips Pg 355 • Diagrams. • Activity 5 • Comparing fraction by Reasoning

  19. Adding & Subtracting Fractions with different denominators. Pattern Block Worksheet. Activity 7 wkst.

  20. X =

  21. Division of Fractions

  22. What is the whole • Using pattern blocks • Diagram • Word Problems for x & / • Percents – diagrams • Ratios & Proportions.

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