:He Poi Pürere Whärite — Lump Balance
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Approach: One to one  
Focus: Use of a balance.
Resources: Balance, box of raisins (42.5g), lump of plasticine.

76KB

Questions/instructions:

Check the adjustment of the balance before starting this task.
Place the balance, lump of plasticine & box of raisins in front of the student.
Whakatikatikatia te pürere whärite i mua i te tïmatanga o tënei mahi.
Whakatakotongia te pürere whärite, te poi kerepeti me te pouaka reihana ki mua i te äkonga.
 

% responses
GEd
MI
1.

I want you to use the balance to make a lump of plasticine which is as heavy as this box of raisins.
If student just changes the shape of the plasticine:
Prompt: You don’t have to use all of the plasticine.
If student doesn’t use the balance:
Prompt: Remember you can use the balance.

Whakamahia te pürere whärite, ki te whakataurite poi kerepeti kia rite ki te taumaha o te pouaka reihana.
Mehemea ka tïnihia te ähua anake me kï atu:
He äwhina: Ehara i te mea me whakamahia te kerepeti katoa.
Mehemea käore te äkonga e whakamahi i te pürere wharite me kï:
He äwhina: Kia maumahara, ka taea e koe te whakamahi i te pürere whärite.

successful
91
95
almost successful
6
5
2.

How do you know that the lump of plasticine and the box of raisins are the same weight?

He aha koe i möhio ai he örite te taumaha o te poi kerepeti ki te pouaka reihana?

clear and correct explanation
44
58
fuzzy explanation, but on right track
47
31
Remove excess plasticine and give the student the lump which they have made.
Hoatu te poi kerepeti i hangaia e te äkonga. Waiho te toenga ki te taha.
3.

Now use this lump to make two pieces that each weigh the same amount.
If halved visually without being checked on the balance, ask:
Prompt: How do you know that each lump weighs the same amount?
Prompt: Can you think of a way of checking that out to see if they are the same?

Mai i tënei poi, mahia anö kia rua ngä poi e orite ana te taumaha.
Mehemea ka häwhe noatia, ä, käore i whakaritea i runga i te pürere whärite, me pätai:
He äwhina: He aha koe i möhio ai he örite te taumaha o ia poi?
He äwhina: Ka taea anö e koe te whakarite [check] mehemea kei te örite te taumaha o ia poi?

successful
92
100
almost successful
8
0
Place the two plasticine lumps in front of the student.
Whakatakotongia ngä poi kerepeti e rua ki mua i te äkonga.
4.

This time I want you to try to make a lump that is one and a half times as heavy as one of these lumps.
Prompt: How do you know that one lump is one and a half times as heavy as the other?
Prompt: Can you think of a way of checking that?

Inäianei mahia he poi kia 1 1/2 te taumaha ake, i tëtahi atu.
He äwhina: He aha koe i möhio ai he taumaha ake tëtahi poi, i tërä, mä te1 1/2?
He äwhina: Ka taea anö e koe te whakarite mehemea kei te tika?

successful
8
23
almost successful
7
23
 
Total score:
5–6
8
23
4
5
20
3
74
54
0–2
13
3

Commentary:
Statistical comparisons are not appropriate because students in Mäori immersion (MI) settings received additional guidance in attempting question 4.

 
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