Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 MAP 2 D Trimester 2 Instructional Strategies Grade 2 Updated 6/10.

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Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 MAP 2 D Trimester 2 Instructional Strategies Grade 2 Updated 6/10

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Subtraction with Regrouping  Start in the ones column with the top number and ask, “Is the number greater or equal to the number below?”  If your answer is “yes”, then begin subtracting. H TO Chapter 7 Lesson 5

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Subtraction with Regrouping  If your answer is “No”, then regroup the tens to add to the ones. H T O * Always ask yourself, “Do I need to regroup?” ones plus 3 ones Chapter 7 Lesson 5

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Subtraction with Regrouping  Check by addition H T O Chapter 7 Lesson

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Compare Money Amounts  Count the set of coins starting with the greatest value. 1¢ 25¢ 1¢ 25¢ 1¢ Chapter 11 Lesson Add vertically 25¢ 1¢ + 0 Add vertically 25¢ 01¢ + 51¢ 28¢

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Compare Money Amounts  Line up the values in vertical form and compare the digits to find which one has the greatest value. 51¢ 28¢ Chapter 11 Lesson 1 51¢ is greater than 28¢ 51¢ 28¢ >

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Make Change  To make change, set up the money amounts in a subtraction problem. For example: You pay 30 cents Chapter 11 Lesson The change is 3 cents. The toy costs 27 cents. 3

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 What Are Fractions? A fraction is a number that represents a part of something. 3 8 Numerator - the top number – the parts you are talking about – 3 parts are shaded Denominator – the bottom number – the number of equal parts in one whole – in this circle, there are 8 equal parts in one whole Say: three eighths

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Fractions Are Shown In Different Ways of the balls are footballsof each figure is shaded 1 0 Part of a Group Part of a Whole On a Number Line

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Compare Unit Fractions As the denominator gets larger, what do you notice about the size of the unit fraction? A larger denominator results in a smaller unit fraction! A unit fraction has a 1 in the numerator.

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Compare Unit Fractions You are REALLY hungry. Would you rather share this sandwich with just one other person and get one half… Or share this sandwich with just seven other people and get one eighth?

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Fractions Equal to One = 1 whole

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Fractions Equal to One How many sixths would equal 1 whole? If a fraction equals 1 whole, what do you notice about the numerator and denominator? How many eighths would equal 1 whole? They are equal!

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Let’s Learn About Fractions Students can compare unit fractions from to by looking at or coloring models of the fractions. Chapter 14 Lessons 1-3 Comparing Fractions

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Red will be one whole. Orange will be two halves.

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Yellow will be three thirds. Green will be four fourths.

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Blue will be six sixths. Pink will be eight eighths. Violet will be twelve twelfths.

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Arrange these on your desk as shown:

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Let’s Learn About Fractions Students find the denominator by counting the total parts Chapter 14 Lessons Find the numerator by counting how many parts are “shaded” or “not shaded”. Parts of a Whole

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 2 Let’s Learn About Fractions Fractional Part of a Group of 6 Have students circle sets of the number that matches the denominator. Then have them color the number of shapes in each set that match the number in the numerator. The total colored shapes equals the fractional part of the group. MAP2D Strategy 2323 of 6 = 4