Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction



Download 72.84 Kb.
Date conversion26.06.2017
Size72.84 Kb.


Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction


Achievement Objectives

Mathematical Processes: Level Two and Three

Number and Algebra: Level Two and Three

Problem Solving: Devise and use problem-solving strategies to explore situations mathematically.

Use equipment appropriately when exploring mathematical ideas.


Logic and Reasoning: Classify objects.

Communicating Mathematical Ideas: Devise and follow a set of instructions to carry out a mathematical activity.

Record and talk about the results of mathematical exploration.



Explain the meaning of the digits in any whole number.

Make sensible estimates and check the reasonableness of answers.

Mentally perform calculations that involve addition and subtraction.

Write and solve story problems that involve whole numbers using addition, subtraction, multiplication, or division.






Strategies being developed

Problem progression


References


Knowledge being developed

Resources


Solve subtraction problems (separating, change/start unknown, or comparing) by going back through tens.

24 - 4 =  so 24 - 6 = .

48 - 8 =  so 48 - 9 = .

65 - 5 =  so 65 – 8 = ,

86 – 6 = , 86 – 9 = .

94 - 4 =  so 94 - 8 = .

136 - 6 = , 136 – 8 = .

503 - 3 =  so 503 - 8 = ,


Teaching Addition and Subtraction (Book 5)

Subtraction in Parts (27)



Figure It Out

BF3 Nines and Eights (4)

BF3 Give or Take (5)

BF3-4 Back through 10 (14)



Identify all of the numbers in the range 0 - 1 000 000.

Teaching Number Knowledge (Book 4)

Number fans (4)

Place value houses (5)

Number hangman (5)

Arrow cards (13)

Figure It Out

N3 Number stretches (2)

NS7/8 L.1 Aiming High (4)

N7/8 L.2 Expanding your Horizons (16)

N 7/8 L.1 Space Zapper (8)



Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction




Strategies being developed

Problem progression

References


Knowledge being developed

Resources


Solve addition problems by forming tens from ones and forming hundreds from tens.

35 + 15 = . 28 + 27 = .

47 + 29 = . 67 + 34 = .

76 + 36 = . 158 + 33 = .

267 + 26 = . 484 + 39 = .

780 + 240 = . 643 + 276 = .


Teaching Addition and Subtraction (Book 5)

How Many Dollar Notes? (31)

Saving Hundreds (32)

How Many tens and Hundreds (35)


Figure It Out

N3.3 Banking Issues (3)


Say the forwards and backwards whole number word sequences by ones, tens, hundreds, and thousands in the range 0 – 1 000 000, including finding numbers that are 10, 100, and 1 000 more or less than a given number

Teaching Number Knowledge (Book 4)

Number fans (4)

Counting (11)

Skip counting on a number line (11)

Lucky dip (13)

Using calculators (4)



Teaching Number Sense and Algebraic Thinking (Book 8)

Whole Number rounding (19)



Solve subtraction problems by operating on place values while “parking” ones, tens (hundreds).

35 - 20 = . 78 - 50 = .

183 - 40 = . 236 - 50 = .

507 - 60 = .

913 - 130 = .

425 - 101 = .

873 - 502 = .

946 - 35 = .


Figure It Out

N7/8 L.1 Caught on Camera (14)



Order whole numbers in the range 0-1 000 000.

Teaching Number Knowledge (Book 4)

Card ordering (12)

Arrow cards (13)

Rocket- where will it fit (14)

Number line flips (15)

Squeeze – Guess my number (15)

Hundreds and thousands book (16)

Bead strings (17)

Who is the richest (18)


Figure It Out

N 3.2 Playing for points (4)

N 7/8 4.3 Exploration to Earth (22)




Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction


Strategies being developed

Problem progression

References


Knowledge being developed

Resources


Solve subtraction problems using standard place value partitioning, e.g. 73 – 46 =  as 73 – 40 = 33, 33 – 6 = .

42 - 26 =  82 - 45 = .

71 - 39 = . 123 - 57 = .

124 - 68 = .

272 - 93 = .

486 - 157 = .

916 - 408 = .


Figure It Out

N2.1 Hip Hip Hop (8)

N2.1 Weka Wobble (11)

N2.1 What’s My Number (16)

N3.3 Slippery Slope (8)

N3-4.1 Money Everywhere (1)

NS&AT3.1 Megabytes of Memory (4)

N7/8 L.1 Firewood Fever (16)

N7/8 L.1 Space Zapper (8)

N7/8 L.1 Fundraiser (6)


Read decimals with tenths, count forwards and backwards in tenths, order decimals with tenths.

Teaching Number Knowledge (Book 4)

Card ordering (12)

Arrow cards (13)

Rocket- where will it fit (14)

Number line flips (15)

Squeeze – Guess my number (15)



Solve addition problems by compensating with tidy numbers.

35 + 19 =  as 34 + 20 = .

48 + 49 =  as 50 + 50 - 3 = .

65 + 97 =  as 62 + 100 = .

298 + 397 =  as 300 + 400 - 5 = .

78 + 387 =  as 65 + 400 = .

456 + 375 =  as 431 + 400 = .



Teaching Addition and Subtraction (Book 5)

Jumping the Number line (33)

Problems like 23 +  = 71 (35)


Recall groupings within 1000, e.g., 240 + 760.

Teaching Number knowledge (Book 4)

Traffic Lights (25)

Zap (26)

Figure It Out

N 3.3 Crazy Compatibles (1)

NS 7/8 L.1 Writing 1000 (14)

N 7/8 L.1 Jungle land (7)


Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction




Strategies being developed

Problem progression

References


Knowledge being developed

Resources


Solve addition problems by looking for compatible numbers.

43 + 37 = . 38 + 62 = .

125 + 75 = .

45 + 255 = .

37 + 46 + 13 + 4 = .

158 + 342 = .

25 + 81 + 34 + 19 + 75 + 66 = .

260 + 150 + 340 = .

333 + 444 + 555 + 666 = .



Teaching Addition and Subtraction (Book 5)

Three or More at a Time (42)


Figure It Out

N2.1 Different Strokes (2)

N2.1 Birthday Time (10)

N2.2 Hitting 100 (4)

N3.3 Crazy Compatibles (1)

N3.3 Skimming Stones (4)

NS&AT2-3.1 Wrapping Up Wontons (1)

NS&AT2-3.1 50 First (4)

NS&AT2-3.2 Tidying Up (16)


Recall addition and subtraction facts to 20.

Teaching Number knowledge (Book 4)

Number boggle (33)

Tens frames again (34)

Number mats and number fans (34)

Bowl a fact (35)

Loopy (37)

Addition flash cards (37)

Figure It Out

BF 2-3 Takeaway numbers (12)

BF 3-4 Bunches (1)

BF 3-4 Diamond dazzle (4)

BF 3-4 Face totals (18)


Solve addition and subtraction problems by compensating with tidy numbers (including equal additions).

53 – 19 = ,

as 53 – 20 + 1 = .

82 – 48 = ,

as 82 – 50 + 2 = .

185 – 96 = ,

as 185 – 100 + 4 = .

453 – 289 = ,

as 453 – 300 + 11 = .



Teaching Addition and Subtraction (Book 5)

When One Number is Near 100 (37)

Problems like 73 – 19 =  (38)

Equal Additions (38)


Figure It Out

N3.2 Tracking Toroa (1)

NS&AT3.1 Tidying Up (2)


Recall how many tens and hundreds there are in four-digit numbers.

Teaching Number knowledge (Book 4)

Close to 100 (24)

Tens in hundreds and more (27)

Figure It Out

N 3.3 Banking Issues (3)

N 3-4 Money everywhere (1)

NS 7/8 1 Aiming High (4)



Transition: Early Additive to Advanced Additive Domain: Addition and Subtraction


Strategies being developed

Problem progression

References


Knowledge being developed

Resources


Solve comparison and difference problems by reversing (adding instead of subtracting),

e.g. 72 – 45 =  as 45 +  = 72.



43 – 39 =  as 39 +  = 43

83 – 76 =  as 76 +  = 83

91 – 68 =  as 68 +  = 91

203 – 187 =  as 187 +  = 203

783 - 395 =  as 395 +  = 783

Teaching Addition and Subtraction (Book 5)

Don’t Subtract - Add (34)

Problems like 67 –  = 34 (42)


Figure It Out

BF3 Array Puzzles (8)



Record the results of mental calculation using addition and subtraction equations and diagrams

Teaching Number knowledge (Book 4)

Bridges (35)



Figure It Out

NS 7/8 1 Different approaches (17)

NS 7/8 2 Short Cuts (1)


Solve addition and subtraction problems by exchanging ones for tens, and tens for hundreds (decomposition), leading to a written algorithm.

46 93

+ 38 - 57
537 714

+ 429 - 267

Teaching Addition and Subtraction (Book 5)

A Standard Form for Addition (43)

A Standard Form for Subtraction (44)


Round whole numbers to the nearest ten, hundred, or thousand

Teaching Number knowledge (Book 4)

Swedish rounding (28)



Figure It Out

BF 3 Steeplechase (23)



Choose critically from a range of mental strategies to solve addition and subtraction problems.


65 + 79 = 

94 – 78 = 

345 + 656 = 

84 – 56 = 

603 - 287 = 

286 +  = 942

 - 429 = 831


Teaching Addition and Subtraction (Book 5)

Mixing the Methods (45)



Carry out column addition and subtraction with whole numbers of up to four digits

Teaching Number knowledge (Book 4)

Close to 100 (24)



Figure It Out

N 2-3 Maps and magic (10)



N 3-4 Head cases (13)




© 2006 Crown Copyright Numeracy Development Projects






The database is protected by copyright ©hestories.info 2017
send message

    Main page