What Im learning in Maths today Maths Y

What I’m learning in Maths today Maths – Y 5 (Angles) Date: 5. 5. 20 L. Obj: *I know that a ½ turn is equivalent to 180 degrees. *I know that a ½ turn is equivalent to a straight line. *I can calculate the missing angle(s) on a straight line accurately. I CT Group TA Pair Teacher assessment

Heidi, Amy and Nelly - 72 9 720 0. 009 What is the missing part of the calculation? 5. 9 0. 59 318 261 26. 1 4, 526 318, 000 4. 526 Holly T, Daniel, Katie, Lucy, Cameron, Alissa, Izzy, Sophie and Jacob - What is the missing part of the calculation……. . ? 37 4. 5 370 450 189 9, 000 18. 9 9 2. 1 21 0. 25 2. 5 Zoe, Isla, Nia, Holly H, Rhys and Isobel – What is the missing part of the calculation? 7 49 70 4. 9 165 0. 8 16. 5 32 3, 200 80 74 0. 74

Nelly, Heidi and Amy - 72 x 10 9 720 0. 009 ÷ 1, 000 ANSWERS 5. 9 ÷ 10 261 ÷ 10 0. 59 26. 1 318 X 1, 000 318, 000 4, 526 ÷ 1, 000 4. 526 Lucy, Katie, Alissa, Izzy, Sophie, Jacob, Cameron, Holly T and Daniel - ANSWERS 37 x 10 4. 5 370 x 100 450 189 9, 000 ÷ 10 18. 9 2. 1 9 0. 25 ÷ 1, 000 x 10 21 x 100 2. 5 Isla, Zoe, Rhys, Isobel, Holly H and Nia – ANSWERS 7 x 10 49 70 ÷ 10 4. 9 165 0. 8 ÷ 10 x 100 16. 5 32 x 100 3, 200 80 74 ÷ 100 0. 74

Circle 5 pairs of numbers that total 180. e. g 100 + 80 = 180 © Classroom Secrets Limited 2019 125 55 62 110 95 100 80 70 60 90 67 123 90 40 143 37

Circle 5 pairs of numbers that total 180. © Classroom Secrets Limited 2019 125 55 62 110 95 100 80 70 60 90 67 123 90 40 143 37

True or false? o o 91 + 79 = 180 © Classroom Secrets Limited 2019 o

True or false? o o 91 + 79 = 180 o False. 91° + 79° = 170° © Classroom Secrets Limited 2019

Calculate the missing angle. x 77 o Angles not drawn to scale. © Classroom Secrets Limited 2019

Calculate the missing angle. 103 77 o o Angles not drawn to scale. o o 180 – 77 = 103 © Classroom Secrets Limited 2019 o

Work out the missing angle from the two angles given. 49 o x 78 o Angles not drawn to scale. © Classroom Secrets Limited 2019

Work out the missing angle from the two angles given. Angles not drawn to scale. 49 o o 53 o 78 o o 180 – 49 = 131 o o 131 – 78 = 53 © Classroom Secrets Limited 2019 o o

Rhys is measuring angles on a straight line. He says: There are three angles on the line. One is 100°, one is 15° and the other is 55°. Could he be right? Explain how you know. © Classroom Secrets Limited 2019

Rhys is measuring angles on a straight line. He says: There are three angles on the line. One is 100°, one is 15° and the other is 55°. Could he be right? Explain how you know. Rhys cannot be right because his angles total 170°. © Classroom Secrets Limited 2019

One of the angles below has lost a digit. What should it be? 2 o 82 o 74 o Angles not drawn to scale. © Classroom Secrets Limited 2019

One of the angles below has lost a digit. What should it be? Angles not drawn to scale. 24 82 o o o 74 o o 180 – 82 = 98 o o 98 – 74 = 24 © Classroom Secrets Limited 2019 o o

Tilly says that angle A is the same as Angle C. Do you agree? Explain your answer. B 116° A 32° C Angles not drawn to scale. © Classroom Secrets Limited 2019

Tilly says that angle A is the same as Angle C. Do you agree? Explain your answer. Angles not drawn to scale. B 116° A C 32° o o o Tilly is correct because 116 + 32 = 148. o o o 180 – 148 = 32 which is the same as A. © Classroom Secrets Limited 2019

NOW IT’S YOUR TURN! (D) – Isla, Holly H, Nia and Rhys (Activity Sheet 1 A, 1 B, 2 A, 2 B, 3 A, 3 B, 4 A and 4 B) (E)- Daniel, Izzy, Zoe, Isobel, Alissa, Lucy, Katie, Jacob, Sophie, Cameron and Holly T (Activity Sheet 5 A, 5 B, 6 A, 6 B, 7 A, 7 B, 8 A and 8 B) (GD) – Heidi, Nelly and Amy (Activity Sheet 9 A, 9 B, 10 A, 10 B, 11 A, 11 B, 12 A and 12 B)