Small Friends Pond — Lesson 28: Plus 3 and plus 4 practice
Small friends: plus 2 and plus 1 →Lesson 28: Abacus plus 3 and plus 4 practice
Level 3, Small Friends Pond. Some sums need the small friend. Can you get five in a row?
What your child does, card by card
Plus 3 and plus 4 practice. Practice day! PlayBuddy opens the lesson: “Practice time. Let's get quicker and better.”
Watch me: 3, 8, 7, 3, 8 and 6 appear on the beads one move at a time, each bead ringed in green before it goes. The top bead comes down both times.
Try it puts a green ring on each next bead; your child works out 2 + 4 and 3 + 3.
Add five in a row: a mission of 8 tasks with a count of right answers in a row, with the best kept. Your child must work out 1 + 4, 4 + 3, 2 + 2, 3 + 4, 2 + 3, 0 + 4, 4 + 4 and 3 + 3.
Copy me: the beads show 7, 8 and 6 and your child answers by tapping the drawn fingers, the hands window glowing.
Then the beads hide and the sums 4 + 4, 2 + 3 and 3 + 4 are done in the head, the answer shown on the fingers.
You're ready! Plus 3 and plus 4, with and without the friend.
What this lesson trains
16 answers in about five minutes. The tasks take 18 bead moves in all: 8 with a top bead and 10 with bottom beads. Nothing goes past 8. Then 3 quick looks in your head. Small friends do 8 of the 10 sums, by +4 = +5 −1 and +3 = +5 −2.
The first thing your child does: work out 2 + 4 and 3 + 3.
Fingers and hands
Below the abacus the drawn hands show zero and 1, 2, 3, 4, 5, 6, 7 and 8 here, finger for bead.
+4 on the fingers: the thumb opens and one finger closes (+5 −1). +3 on the fingers: the thumb opens and 2 fingers close (+5 −2).
In Copy me the beads lead with 7, 8 and 6, and your child answers on the fingers: the reverse of making a number on the beads.
What PlayBuddy and PlayType say
PlayBuddy: “Top bead down, small friend off.”
Stars
With 1 or fewer slips across the 16 answers your child earns three stars; 4 or fewer, two.