Run sheet

Multiplying by Tens, Hundreds, and Thousands

Grade 5 · Lesson 5 · 23 slides · blocked practice

The big idea

Multiplying by 30 is multiplying by 3 and then by 10 — a fact you know, followed by a shift.

Slide by slide

#	On the screen	What you say
1	Today — WARM-UP	Point at the five parts. Name where we are.
2	Show 6,300 ÷ 100.	Boards up on three. This is yesterday's work — Dividing by 10, 100, and 1,000. Do not help each other; I need to see what each of you kept.
3	63 answer — own slide	Show me. Everyone at once. Check your own board against this.
4	Today — I DO	We are at I DO. Boards down and flat.
5	Multiplying by 30 is multiplying by 3 and then by 10 — a fact you know, followed by a shift.	Read this out. Do not explain it yet — the example explains it.
6	4 × 30 build 1 of 5	4 × 30. I do not know this one directly.
7	4 × 30 4 × 3 × 10 build 2 of 5	But 30 is 3 × 10.
8	4 × 30 4 × 3 × 10 12 × 10 build 3 of 5	4 × 3 is a fact I know.
9	4 × 30 4 × 3 × 10 12 × 10 120 build 4 of 5	Now one shift left.
10	4 × 30 4 × 3 × 10 12 × 10 120 4 × 30 = 120 build 5 of 5	Fact first, shift second.
11	6 × 400	Now the same thing on a new one. Watch — nothing on your boards.
12	400 is 4 × 100. 6 × 4 = 24. Two shifts. 2,400 answer — own slide	I say every step aloud as I write it. The board keeps all of it.
13	Today — WE DO	We are at WE DO. Boards up.
14	7 × 50	Name the fact you are using before you shift. Boards up.
15	7 × 5 = 35. One shift. 350 answer — own slide	Boards up. Everyone at once — check yours against this.
16	8 × 3,000	The fact is small. The shift is what makes it large.
17	8 × 3 = 24. Three shifts. 24,000 answer — own slide	Boards up. Everyone at once — check yours against this.
18	Today — YOU DO	We are at YOU DO. Boards down, books open.
19	Dimensions 5A — page 15	Open your books to this page. Wait — do not start yet.
20	Do — page 15	These are the book's own problems, same type as the three we have just done. Work them in the book.
21	Today — CLOSURE	Last part. Answers up.
22	“What is the fact, and how many shifts?”	This is the question to ask yourself every time, not just today.
23	Show 9 × 600.	One last board. Then we are finished.

Mini whiteboards, by segment

Segment	MWB	Time	Boards	What to hold
WARM-UP	retrieval	3-5 min	BOARDS UP	Question up, boards up on the count. Everyone shows at once — a child who waits to see a neighbour's board has not retrieved anything.
I DO	none — they watch	3-4 min	boards down	Boards DOWN and flat. This segment is watching, and a child writing is not watching. Say so once at the start of the year and then hold it.
WE DO	primary use	5-6 min	BOARDS UP	One step, then boards up. Do not let them run ahead to the answer — the point is that everybody is on the same step at the same time.
YOU DO	on the sheet	4-5 min	boards down	Boards down. This is the book's problems, worked where the work will be kept.
CLOSURE	answers displayed	2-3 min	boards down	Answers on the board, children check their own. Mark nothing here.

Watch for
Children count the zeros in the answer rather than shifting, and 5 × 4 = 20 defeats them — 5 × 40 has TWO zeros in the answer from one shift. Fact first, then shift, and the problem disappears.