Primary 1 – Maths: Learning Subtraction with Number Cones
Primary 1 students enthusiastically explored the concept of subtraction during a hands-on Mathematics lesson focused on numbers within 20. The lesson began with an engaging warm-up activity. Students worked with their partners to mention numbers from 0 to 20 and from 20 back to 0 using cones as visual support. This activity strengthened students’ number recognition, sequencing skills, and fluency in counting forward and backward, which are essential foundations for learning subtraction.
The lesson began with an engaging warm-up activity. Students worked with their partners to mention numbers from 0 to 20 and from 20 back to 0 using cones as visual support. This activity strengthened students’ number recognition, sequencing skills, and fluency in counting forward and backward, which are essential foundations for learning subtraction.
Next, students were invited to sit with their seatmates to solve simple subtraction questions using cones. By physically taking away cones, students were able to clearly see how subtraction represents “removing” or “finding the difference.”
The teacher then guided the students through Mathematics Student’s Book page 110, focusing on identifying subtraction from pictures. Students observed the images carefully, counted the total objects, identified how many were taken away, and determined the remaining number. During this activity, students independently analyzed each picture. Students applied their prior knowledge and strategies learnt during the lesson to solve problems accurately.
Throughout the lesson, the teacher actively monitored students’ progress and provided guidance where needed. Students showed strong engagement, collaborated well with their peers, and demonstrated growing confidence in solving subtraction problems. This structured learning experience allowed students to progress gradually from recalling numbers, to understanding subtraction concepts, and finally to applying their knowledge independently. The lesson successfully supported students in building a solid foundation in early mathematical thinking.
