Estimation with Base 10 Blocks Using Visuals Compared to Rounding.

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Presentation transcript:

Estimation with Base 10 Blocks Using Visuals Compared to Rounding

Estimation compared to Rounding Read 1 of the following excerpts – p.47 – p.192 – p.197 Why estimate? Why round? Ideas from excerpts: “Nice” Numbers Using a number line Rules of rounding Reasonableness of answer

Visual of Base 10 Blocks Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

16

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

39

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

42 3 longs + 12 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

44 4 longs + 4 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

longs + 9 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

98 9 longs + 8 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

305 2 flats + 10 longs + 4 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

589 5 flats + 8 longs + 9 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

911 8 flats + 11 longs +1 unit

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

911 8 flats + 10 longs +11 unit

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

911 9 flats + 0 longs +11 unit

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

911 9 flats + 1 longs +11 unit

With a partner… 1)Each person, make a group of base 10 blocks for your partner to estimate 2)Choose a quantity / number that means something to you 3)Cover the blocks with a paper and show quickly to your partner to estimate quantity 4)Partner estimates quantity 5)Tell them the quantity and decide if it is close and why 6)Describe the meaning of the number to you

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

926 8 flats + 12 longs + 16 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

699 5 flats + 19 longs + 9 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

1,098 1 block + 9 longs + 8 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

1,198 1 block + 1 flat + 9 longs + 8 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

1,975 1 block + 9 flats + 7 longs + 5 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

1,936 1 block + 8 flats + 12 longs + 16 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Think on your own Estimate the quantity… Between which 2 numbers … Why? Pair share with a friend Share your thinking

5,596 5 blocks + 5 flats +8 longs + 16 units

Estimate the quantity… Between which 2 numbers would you estimate the quantity? Why?

Debrief the Activity Share with a partner the connections you saw with the 4Rs and this activity

Four “Rs” of Culturally Responsive Teaching How will I build relationships with teachers, students, and families? In what ways will I message to ALL students that they are expected to attain high standards? What strategies will I use to make sure students and adults are able to show up as their authentic selves? How will I make sure the curriculum relates to students’ experiences, interests and backgrounds?