My Size Can Change


Age Group: 3+ students

Theme/Topic: Changing World, Changing Me

Curriculum Area: Mathematics

Name of Activity: My Size Can Change

Previous Knowledge: The students can identify the comparison of small and big.

Materials: Youtube videos; computer/tablet/phone; 3 balloons; 3 pencils; 3 pieces of paper; hand-held bubble machine; worksheet #4; crayons.

Strands:    Intellectual Empowerment, Wellness


Children will be given opportunities to:

Cognitive:  observe and identify several objects in which the sizes can change from small-smaller-smallest or big-bigger-biggest (bubbles, balloons, pencils, paper).


Affective:  participate in learning activity by listening activity, following instructions to change the shapes, making comments, responding to questions under the concept and also enjoying the activity.


Psychomotor:   develop gross and fine motor skills and hand-eye coordination by pointing, holding and colouring objects in the category of small-smaller-smallest and big-bigger-biggest.


  • The teacher will get the two videos from on Youtube and put them on pause for awaiting the beginning of the lessons –
  • The teacher will cut out 3 different sizes of paper and write the words big, bigger, biggest on one side.
  • The teacher will prepare a hand-held bubble machine. She will gather 3 pencils in the size of small-smaller-smallest.  She will also gather 3 balloons and blow them up into 3 different sizes.
  • The teacher will prepare another follow up worksheet with a drawing of 3 balloons with the words small-smaller-smallest written below and the words big-bigger-biggest written above the balloons as shown in the diagram labelled as worksheet # 4.




  • The teacher will engage the students in singing the song “Baby Shark” along with doing the hand movement to show the representation of the baby shark, the mommy shark, and daddy shark.
  • The teacher will hold up two pieces of paper and ask the students which is the smaller one and which one is the bigger one. She will add a third piece of paper and ask the students which is the biggest and smallest piece of paper.  She will explain and show the comparisons of small-smaller-smallest and big-bigger-biggest.
  • The teacher will show the students an interactive Youtube video on big-bigger-biggest.
  • The teacher will put the three pencils on the table and tell the students to identify the big, bigger, biggest and small, smaller, smallest as she points to each one. She will hold up the 3 balloons and ask the students to identify big, bigger, biggest and small, smaller, smallest.
  • The teacher will tell the students to her which bubble is big, bigger and biggest and which is small, smaller, smallest as she blows them one by one.
  • The teacher will blow many bubbles and tell the students to pop them.


ASSESSMENT:  The teacher will give the students a worksheet with the drawings of three balloons of different sizes and instruct them to colour the small balloon green, the smaller balloon orange and the smallest balloon red.



Homework – the teacher will encourage the parents to engage the students in the home to identify the size of objects by stating if they are small, smaller or smallest.