RightStart Mathematics

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1 Most recent update: January 7, 2019 RigtStart Matematics Corrections and Updates for Level F/Grade 5 Lessons and Workseets, second edition LESSON / WORKSHEET CHANGE DATE CORRECTION OR UPDATE Lesson 7 04/18/2018 Lesson 16 Workseet 6 01/07/2019 Lesson 40 Workseet 29 01/07/2019 Lesson 41 12/29/2017 Lesson 54 Workseet 42-B 12/29/2017 Lesson 61 12/29/2017 Te Quotient and Remainder game instructions sould read: Place te dividend card, te multiplication card, first in te row, as sown below." Te second paragrap of Information on te workseet (and written in te lesson) sould read "In te expression 3 2, te exponent 2 means tat te number 3 is multiplied two times." See attaced pdf for te workseet. In te warm-up, te second sentence referring to dividing by te same number as been removed. See attaced pdf. On te second page in te middle of te page at te end of te paragrap, it sould read "Wat is te expression after multiplying by 10? [7.5/5]" It previously read 100. Te last equation in te "<, >, or " section sould read , not as printed. Answer is te lesson book is correct. Te tree answers for problems 2 4, Figure C, are wrong. Correct answers are igligted. Lesson 64 04/18/2018 Lesson 64 Workseet 52 04/11/2018 Lesson 66 Workseet 54 04/18/2018 Lesson 67 01/07/2019 Te answer for te last question in te Warm up sould be "multiply a side by itself or A s 2," not "multiply a side by 4 or A s 2." In te last cart on te page, te middle eading sould read Boundary Pairs 1, not Boundary Pairs. See attaced pdf. Questions sould read "Are te formulas for finding all correct?", not ""Are te formulas for finding are correct?" See attaced pdf. Te eigt measurements for te second and tird triangles in Problem 2 sould be 1.2, not 1.0. Tis canges te area to 0.78 in 2, not 0.7 in 2. See attaced pdf for te second page of te lesson.

2 Lesson 67 Workseet 55 01/07/2019 Lesson 70 Workseet 58 01/07/2019 Lesson 75 02/15/2018 Lesson 76 04/11/2018 Te instructions and figures ave canged sligtly. See attaced pdf. Te second sentence in Question 1 sould read, "Use a tangram to draw te eigt for bot triangles using te orizontal lines as te base." See attaced pdf. On te second page, te calculation for te triangular prism sould read 1/ for te base, calculating te volume at 19.7 cm 3. On te second page, last paragrap under te Problem 4 eading, te answer sould read 1,000,000,000, not 1,000, Lesson 91 04/18/2018 First answer for te warm up sould be 7 11/9 8 2/9, not 8 2/5. Lesson 94 04/18/2018 Answer for te tird Warm Up problem sould be 1 17/30. Lesson /07/2019 Lesson /18/2018 Lesson 134 Workseet /18/2018 Lesson /18/2018 Lesson 142 Workseet /18/2018 Te answers for te previous day's workseets as an incorrect answer (altoug it is rigt for Lesson 105). Te tird expression in te second column, 5/6 4/6, sould be 5/4, not 4/3. Last question in te conclusion sould read: Wat is 20 millimeters divided by 1 centimeter? [2], not Wat is 20 millimeters divided by 10 centimeters? [2] Information at te top of te page, conversion for km needs to read: 1 km 1000 m, not 1000 cm. See attaced pdf. Answer for Workseet 120-A, under te <, >, or section, 45 days < 2 monts. Second to last question and answer for Workseet 123 sould read: Wat is te name of a quadrilateral wit only two sides parallel? Answer trapezoid is correct. See attaced pdf. Lesson /07/2019 Question 22, sould be , not

3 Workseet 6, Square Numbers Warm-Up Divide. Use ceck numbers to ceck your answers. 4 ) ) ) INFORMATION: Exponents are a sortcut way of writing a number multiplied by itself a number of times. Te exponent is te small number written above te line. In te expression 3 2, te exponent 2 means tat te number 3 is multiplied two times. It means 3 3. We usually read it as 3 squared. In te same way, 4 2 means 4 4. Write 5 squared using exponents and using multiplication. Draw 1 2, 2 2, 3 2, 4 2, and 5 2 squares on te grid below. Label tem and find te values. On te multiplication table, evaluate and circle 1 2, 2 2, 3 2, 4 2, 5 2, 6 2, 7 2, 8 2, 9 2, and Evaluate te following expressions. ( ) (3 + 4) (3 + 1) 2 (4 + 6) [10 2 (1 + 4)] [( ) (40 + 8)] 2 [( ) (5 3) 2 ] RigtStart Matematics Second Edition, F

4 Workseet 29, Dividing by Tents Warm-Up Multiply te numbers given. Use ceck numbers to ceck your work if you like ( ) 2 4 ( ) 3 8 ( ) ( ) ( ) ( ) Write te equations sown on te abacuses. Eac bead on te abacus represents If eac bead in te abacuses above suddenly explodes becoming ten times greater, wat appens to your answers? RigtStart Matematics Second Edition, F

5 Workseet 52, Area on te Geoboard A square formed by four pegs on te geoboard is 1 unit of area. Boundary points are pegs on te perimeter of te figure. A boundary pair is two boundary points. Fill in te table for eac figure below. Figures 1 to 5. Number of Pegs Area in Units Boundary Pairs Inside 1 2 Figures 6 to 8. Area in Units Number of Pegs Boundary Pairs Inside Figures 9 to 13. Area in Units Number of Pegs Boundary Pairs 1 Inside RigtStart Matematics Second Edition, F

6 Workseet 54, Introducing Formulas 1. Are te formulas for finding te perimeter, P, and area, A, of a rectangle all correct? Write yes or no. P w + + w + P 2w + 2 P w P 2(w + ) A 2(w ) A w w 2. Are te formulas for finding te perimeter, P, and area, A, of a square all correct? Write yes or no. P w + + w + P 2w + 2 P 2(w + ) P 4w A 2 (w + ) A w A w 2 A 2 w 3. Are te formulas for finding te perimeter, P, and area, A, of a parallelogram all correct? Write yes or no. P 2w + 2 P w s P 2(w + s) A 2(w ) A ws A w A w w s 4. Are te formulas for finding te perimeter, P, and area, A, of a triangle all correct? Write yes or no. P w + b + P 2w + 2 P w + b + a A w + A 1 2 (w ) A 1 2 A 1 2 w A w 2 (w + ) a w b RigtStart Matematics Second Edition, F

7 ACTIVITIES FOR TEACHING CONTINUED: Workseet 55, Problem 1. Tell te cild to read te instructions for te first problem. Tell im te eigts are drawn for im, but e needs to matc te correct eigts and widts. Te solutions are below. EXPLANATIONS CONTINUED: 135 A 3.7 cm 2 A 3.7 cm 2 A 3.7 cm 2 Problem 2. Tell im to complete te second problem on te workseet. Tell im to use te triangle to draw te perpendicular line. Te solutions are below. 1.5 in. Answers may vary sligtly. 1.1 in. 2.3 cm 2.1 cm 3.5 cm 2.4 cm 3.1 cm 3.2 cm A 1 2 w A A 1 2 w A A 1 2 w A in. 1.2 in. 1.2 in. 1.3 in. A 1 2 w A A 1 2 w A A 1 2 w A A 0.83 in 2 A 0.78 in 2 A 0.78 in 2 Ask: Wat kind of a triangle is tis? [isosceles acute triangle] Wy do you tink te answers are less accurate compared to Problem 1? [Rounding and te tents of an inc are larger tan te tents of a centimeter.] Problem 3. Tell te cild to complete te tird problem on te workseet. Tell im tat some of te sides of obtuse triangles need to be extended, wic is done for im. Te solutions are below. 3.0 cm Te calculated areas are not identical because te measurements are not exact. Te more accurate te measurements, te closer te calculated areas will be. 1.5 cm 5.6 cm 3.5 cm A 1 2 w A A 4.20 cm cm 2.5 cm A 1 2 w A A 4.35 cm 2 A 1 2 w A A 4.38 cm 2 In conclusion. Ask: Wat do you call a perpendicular line from a side of a triangle to te opposite vertex? [eigt] How many eigts are in a triangle? [tree] If tere is additional time following tis lesson, play te Find te Products game, found in Mat Card Games book, P33.

8 Workseet 55, Area of Triangles 1. Find te area of te triangle below in tree different ways. Measure to te nearest tent of a centimeter. 2. Find te area of te triangle below in tree different ways. Measure to te nearest tent of an inc. Calculate your answer to te nearest undredts. 3. Find te area of te triangle below in tree different ways. Measure to te nearest tent of a centimeter. Calculate your answer to te nearest undredts. RigtStart Matematics Second Edition, F

9 Workseet 115, Converting between Systems INFORMATION: Te definition of an inc is: 1 in cm. Conversions you may need: 1 km (kilometer) 1000 m 1 mi 5280 ft 1 yd 36 in. Use dimensional analysis to solve te problems. Do not round. You may use a calculator. 1. Find ow many centimeters are in a foot. 1 ft 1 ft ft in. Does your answer agree wit a ruler? 2. Find ow many centimeters are in a yard. ft 1 yd Does your answer agree wit a yardstick? 3. Find ow many kilometers are in a mile. ft cm m km 1 mi Wic is longer, a kilometer or a mile? Round your answer to one decimal point. 4. How many miles are in a kilometer? Use your unrounded answer from Problem 3. Round to two decimal places. RigtStart Matematics Second Edition, F

10 Workseet 58, Area of Trapezoids 1. Find te area of te trapezoid by breaking it into two triangles as sown below. Use a tangram to draw te eigt for bot triangles using te orizontal lines as te base. A. Measure in centimeters. B. Write a formula for te area. w 1 w 2 2. Find te area of te parallelogram. Ten find te area of one trapezoid. A. Measure in centimeters. B. Write te formulas for te areas. w 1 w 2 3. Find te area of te trapezoid in square centimeters by adding te areas of te parallelogram and triangle. 4. Find te area of te trapezoid in square centimeters using any metod. RigtStart Matematics Second Edition, F

11 Workseet 123, Classifying Quadrilaterals Write te following terms in te cart: no name, trapezoid, parallelogram, rombus, kite, quadrilateral, square, and rectangle. Use your drawing tools to draw a sample figure in eac of te six boxes. Ten answer te questions below. a polygon wit 4 sides no parallel sides only 1 set of parallel sides 2 sets of parallel sides 2 pairs of adjacent equal sides equal sides rigt angles Wat is te name of a rombus wit rigt angles? Wat is te name of a rectangle wit congruent sides? Wat is te name of a parallelogram wit rigt angles? Wat is te name of a quadrilateral wit only two sides parallel? Wat tree quadrilaterals can be made wit tese lines: RigtStart Matematics Second Edition, F

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