Unit 2
Teroka Ria
Kad Tugasan
① Pilih kad yang diberi.
② Ubah bentuknya dengan dua cara yang berlainan.
③ Padankan kad untuk menyemak.

任务卡活动 = aktiviti kad tugasan
这个活动要练习用两种不同的方法互换带分数和假分数:一种是画图数份数,另一种是用计算(乘加或除法)。两种方法得到同一个答案,就证明答对了。最后用配对题检查自己。
例子:3又3/4 → 画 4 个圆、涂 15 份 → 15/4;或 3 × 4 + 3 = 15 → 15/4。
注意:两种方法的答案要一样。
task card activity = aktiviti kad tugasan
In this activity we practise changing between mixed numbers and improper fractions in two different ways: drawing and counting parts, and calculating (multiply and add, or divide). If both ways give the same answer, we know it is right. Finally we check ourselves with a matching task.
Example: 3 3/4: draw 4 circles and shade 15 quarters, so 15/4; or 3 × 4 + 3 = 15, so 15/4.
Watch out: both methods must give the same answer.
Kad 1
334 → pecahan tak wajar
Cara 1: gambar · Cara 2: darab dan tambah
3 × 4 + 3 = 15 → 154
卡 1 = kad 1
方法一:画 4 个圆,每个分成 4 份,涂满 3 个再涂 3 份,一共 15 份,就是 15/4。方法二:3 × 4 + 3 = 15,分母 4 不变,也是 15/4。两个答案一样。
例子:2又1/5 → 2 × 5 + 1 = 11 → 11/5。
注意:画图时每个圆要分成同样多份。
card 1 = kad 1
Method 1: draw circles cut into quarters, shade 3 whole circles and 3 more quarters, making 15 quarters, which is 15/4. Method 2: 3 × 4 + 3 = 15 with the denominator 4 unchanged, also 15/4. The answers match.
Example: 2 1/5: 2 × 5 + 1 = 11, so 11/5.
Watch out: when drawing, cut every circle into the same number of parts.
Kad 2
236 → nombor bercampur
Cara 1: tolak 1 berulang · Cara 2: bahagi
236 − 66 − 66 − 66 = 56
→ 1 + 1 + 1 + 56 = 356
→ 1 + 1 + 1 + 56 = 356
23 ÷ 6 = 3 baki 5
卡 2 = kad 2
方法一:每拿走 6/6 就是拿走 1,23/6 可以拿走 3 次,剩下 5/6,所以是 3又5/6。方法二:23 ÷ 6 = 3 余 5,也是 3又5/6。
例子:17/4 → 拿走 4 次 4/4,剩 1/4 → 4又1/4。
注意:剩下的分数要比 1 小,才停止。
card 2 = kad 2
Method 1: taking away 6/6 takes away 1; we can do this 3 times from 23/6 and 5/6 is left, so 3 5/6. Method 2: 23 ÷ 6 = 3 remainder 5, also 3 5/6.
Example: 17/4: take away 4/4 four times and 1/4 is left, so 4 1/4.
Watch out: stop when the fraction left is less than 1.
Semak dengan rakan
Padankan nilai yang sama
配对核对 = padankan dan semak
左边每张卡是带分数或假分数,右边是另一种写法。先用学过的方法换一换:带分数用“乘加”,假分数用“除法”,再找右边写法相同的卡。
例子:3又1/6 = 19/6,所以 3又1/6 要配 19/6。
注意:配对前先算好,不要只看数字像不像。
match and check = padankan dan semak
Each card on the left is a mixed number or an improper fraction; the right side has the other form. Change it with the method you know: multiply and add for a mixed number, divide for an improper fraction, then find the matching card.
Example: 3 1/6 = 19/6, so 3 1/6 matches 19/6.
Watch out: work it out before matching; do not just look for similar digits.
Ringkasan