Year 2Year 2

Learning Area: Addition with the highest total of 1000

Learning Objectives: Pupil’s will be taught to :•Understand addition as combining two groups of objects•Use and apply knowledge of addition in real life

Learning Outcomes: Pupils will be able to:•Add two numbers with and without regrouping•Solve problems involving addition in real life situation

Previous knowledge: Pupils already know numbers up to 1000

Home/back Instructions to implement Task synopsis

Signs to look out for

Definition

Contents Slide

Counting by tens

Addition below 20

Addition below 400

Addition below 700

Problem solving

Addition below 1000

5-6

7-9

15-17

10-12

13-14

19-20

The Number The Number MatMat

The Number The Number MatMat

Knowing numbers Knowing numbers from 10 to 1000 by from 10 to 1000 by

adding in tens.adding in tens.

10 20 30 40 50 60 70 80 90 100

110 120 130 140 150 160 170 180 190 200

210 220 230 240 250 260 270 280 290 300

310 320 330 340 350 360 370 380 390 400

410 420 430 440 450 460 470 480 490 500

510 520 530 540 550 560 570 580 590 600

610 620 630 640 650 660 670 680 690 700

710 720 730 740 750 760 770 780 790 800

810 820 830 840 850 860 870 880 890 900

910 920 930 940 950 960 970 980 990 1000

Mia’s Food StallMia’s Food StallMia’s Food StallMia’s Food StallAdd the following and write Add the following and write the answers in numerals.the answers in numerals.

1.

2.

3.

4.

7

EXAMPLE

5.

6.

8.

7.

Toys R’ Us StoreToys R’ Us StoreToys R’ Us StoreToys R’ Us StoreFind the answers Find the answers from the number from the number sentences given.sentences given.

This is Mia and she is helping the social workers to add the toys in room A and B to be given to the Tsunami victims. Can you help her to finish counting the toys?

Stuffed bear

355 + 45 = 400

Rattle

188 + 172 =

Truck

53 + 232 =

Blocks

139 + 260 =

EXAMPLE

Stuffed puppy

169 + 214 =

Wagon

79 + 299 =

Doll

149 + 37 =

Rocking horse

55 + 345 =

Addi-portAddi-portAddi-portAddi-port

Do the following sums in Do the following sums in standard written method.standard written method.

1. 2.

3. 4. 5.

6. 7. 8.

EXAMPLE

7 0 0

Think and Solve MeThink and Solve MeThink and Solve MeThink and Solve MeSolve these problems Solve these problems

using the number using the number sentences and standard sentences and standard

written method.written method.

There are 576 boys in Mia’s school. There are 65 girls more than the boys . How many girls are there in the school?Number sentence

Standard form

Number sentence

Josh has 237 baloons. Raju has 429 baloons. Ipin has 330 baloons. How many baloons do they have altogether?

Standard form

There are 535 roses in a box. Ah Chai puts 14 more roses into the box. How many roses are there altogether?

Standard form

Number sentence

Fill Me UpFill Me UpFill Me UpFill Me Up

Make the sum correct Make the sum correct by filling in the circles.by filling in the circles.

95

549

1000

370

256

185

699

Definition of Addition of Whole Numbers

• Is an operation on numbers (1,36,97)

• Is the process of adding two/more quantities (230 + 67)

• The result will always increase (230 + 37 = 600

The Number Mat• Synopsis This slide is basically

to refresh the pupils mind regarding numbers from 10 up till 1000 so that it will be easier for them to add them in the later stages. It will also reinforce their previous learning in order to ensure that they remember them better.

• Implementation of instructions

a. Teacher introduces the topic and elicits responses.

b. Teacher reads out the numbers followed by the pupils.

c. Pupils read out the numbers as a class or individually.

d. Teacher checks for number recognition and also pronunciation.

Mia’s Food Stall Synopsis This activity actually enables the pupils to

recount on what they had learnt in earlier standards as they will be adding food items with the total sum below 20. They can count the items using the pictures and write their answers in the box provided. This activity will help the weaker pupils as they will have the pictures to assist them while counting while will reduce their anxiety level. Food items are used here to actually attract the pupils attention and also interest towards the lesson. Additionally, the total amount is below 20 as this activity is the first activity and it is used as the warm up activity before the teacher moves on to bigger numbers later on.

Implementation of Instructionsa. Teacher distributes the task sheet and asks

the pupils to work individually.b. Teacher tells them that the task will be

related to their lesson today and also is related to what they had learnt before.

c. Teacher also tells them that they can use the pictures given to assist their counting before they write the answers in numeral form in the yellow box provided.

d. Teacher goes around and monitors the pupils work to ensure that they are doing well.

e. Teacher checks answers with the whole class and corrects them if they had made any mistakes and then moves on the next activity.

Mia’s Food Stall

Toys R’ Us Store Synopsis This activity actually measures the pupils

adding and also calculating skill whereby they have to read the small excerpt regarding the victims of Tsunami and how Mia is going to help them. The children then need to add a particular toys’ amount from room A with room B and then come up with the total amount. The activity here is done in number sentences as it is to develop the children’s cognitive skill as they will learn unconsciously how to add them up using standard written method. Attractive toys are used as the items here as the children will feel more connected and to reduce the thought that mathematics is boring and difficult.

Toys R’ Us Store Implementation of Instructionsa. Teacher distributes task sheets and asks a pupil to

read out the short excerpt to the whole class to ensure that the rest of them are focussing.

b. Teacher then asks the children to work individually to complete the sums.

c. Teacher tells them to ask for help from their friends if they are having any problems and if their friends cannot help, they should call for her.

d. Teacher goes around to monitor and assist the children to endure that they are on the right track.

e. Teacher asks the children to exchange papers with their desk mates so that they could check answers.

f. Teacher checks answer with the whole class by doing the calculation on the board so that everyone could see and check.

g. Teacher corrects them if they had made any mistakes and clears any doubts related to the number sentence questions that were asked previously.

Addi-port Synopsis At this stage which will be the development

stage, the pupils will be required to do the additions in standard written method using the group/ungrouping or the carrying forward technique. The example provided for this activity will be very useful as the children can use it as a guidance for the rest of the sums. By completing this activity, they will learn how to put the added and augend in the correct ‘houses’ to be able to calculate correctly. This will be a very crucial task as it will be very useful for them to do other teaching operations later.

Addi-port Implementation of Instructionsa. Teacher asks pupils to get into groups of four

before moving on to the next task.b. Teacher distributes task sheets to the pupils

and asks them to read the questions first before attempting them.

c. Teacher asks the pupils to try answering the questions by themselves first before asking others help.

d. Teacher advises the better pupils to help the weaker ones within the group so that everyone could learn and benefit from the task.

e. Teacher goes around and monitors the pupils work and clear their doubts.

f. Teacher checks answers by calling out pupils to finish the sums by writing them on the board.

Think and Solve Me Synopsis This is basically the last stage that the pupils

need to complete as in this stage they will be dealing with problem solving questions that they need to read, understand, retrieve the needed information and finally write them back. Here they are asked to write the sums in both forms which is in number sentence and also in standard form. They will be able to implement what they had learnt earlier in this stage to assist their cognitive development regarding this particular topic. Pictures are given to assist their understanding but no examples are given because at this stage/activity is to measure their overall understanding related to addition and also whole numbers.

Think and Solve Me Implementation Instructionsa. Teacher distributes task sheets and asks

pupils to work in the previous groups again to solve the problems.

b. Teacher asks the pupils to try out the activities by themselves or by discussing in their groups.

c. Teacher monitors the pupils progress and later on checks answers with the whole class by asking some pupils to present their answers in front.

d. Teacher corrects them if they make any mistakes.

Fill Me Up Synopsis Fill me up activity is basically an activity that

tests the pupils calculating skills as they need to subtract besides adding to find the answers. The total amount of all the questions/sums given will be 1000 which is their focal point to learn. This activity can be used as an additional or introduction before the teacher moves on to the next class or skill related to subtraction. The main reason why this activity is included together is to give a choice to either to use or not to use it for the lesson. However, it all depends on the level of the pupils and also the teachers initiative because nowadays most of the children do even know the 12th multiplication table in standard one itself.

Fill Me Up Implementation Instructionsa. Teacher distributes the last task sheet and

asks the pupils to try them out in groups or individually.

b. Teacher tells them that that task might be a bit difficult as they need to use subtraction operations in order to find the answers.

c. Teacher encourages them to give it a try so that they will benefit from it and could also apply what they have learnt previously.

d. Teacher tells them that they can take home and do the task and later on they will check the answers when they meet again for the next lesson.