Lesson
Soroban Place Value and Technique
Students learn how soroban beads, place value, and finger technique support accurate calculation.
Soroban Place Value and Technique
What students learn
Students learn how the soroban organizes numbers by bead position and place value. Start with to connect the tool to base-ten thinking.
Why it matters
The abacus becomes useful only when the movement is precise and repeatable. shows how technique keeps the work organized.
Learn the idea
After setup and technique, students can begin changing bead positions for operations. connects the first moves to familiar addition and subtraction.
Try it
Have the student show 24, 35, and 108 on an abacus or drawing. Ask them to say the place value of each bead before moving to the next example.
Parent guide
Slow, accurate movement matters more than speed. If the student gets lost, clear the abacus and rebuild the number from left to right.