DLO Addition and subtraction

Today I will be sharing my maths DLO with you , I did a slide that shows what we did so here it.



Reflection:
My reflection is that I will solve subtraction equations using family of facts.

Hurumanu - Dirty Water experiment

Aim: To make a filtration plant using household materials.

Water Filtration Plant

What is filtration?

Filtration is separating solids from liquids by adding a medium through which only the liquid can pass. 

Examples are:

1.  pool filter
2.  air filter
3.  water filter 
4. 
   

Materials

1.  Plastics bottle  

2.  Filter paper 

3.  Scissors 

4.  Funnel 

5.  Sand 

6. Small stones 

7. Dirty water 

8.

Process - ( use verbs or doing words in each step )

Step 1

Get a bottle and the teacher well put a slit the bottle and then Cut the bottle.

Step 2

Put the top half upside down in the bottle, Get the filter paper and make a cone.

STEP 3

Add layers of sand into the bottom of the cone, add a cup of small stones on top of the sand, add a cup of dirty water and see. 

STEP 4

Get 1 cup of dirty water 

STEP 5

Pour dirty water into 

Findings

Clear with a green tinge and the Drops per minute was 13.

Write a short sentence about the water every 1 minute. 

Include 'How much water has filtered through', 'How fast it is dripping through', and 'How clear the water is'.

Minutes                          1.                         2.                   3.                    4.                       5.
Drops per minute:  13
Water colour: Dirty/ Murky
Conclusion:
The water that flowed through the filter was clear with a green tinge. The water flowed at 13 drops per minute. The dirty water had bark, soil and leaves sat on top of the pebbles. 

Hurumanu-what is that why powders?

Aim: To learn about the makeup of different white powders.
There are  a number of different white powders in our everyday life. Some of these are harmful and others are not. Test the four white powders listed to see which one has been found at the airport.

Here are some examples of everyday kitchen white powders.

Flour, Cornflour, Sugar, Salt, Baking Soda, Baking Powder, Icing Sugar, Tartaric Acid

Citric Acid, Gluten Free flour

You will be given a small amount of 4 white powders on your cardboard. On the black cardboard using a magnifying glass look at the powders.

Look at them under your magnifying glass and record what you see. 

These are the four powders we will be using. Upload a photo of each powder. 

1.  Cornflour
2.  Baking Soda
3.  Salt
4.  Sugar 

Before you add the iodine, vinegar or water you will need to divide each powder into 3.

Materials

1.  cornflour 
2.  salt 
3.  baking soda 
4.  sugar 
5.  vinegar
6.  water 
7. Iodine

Steps

1. Folded paper into four 
2. Wrote on the paper 
3. we put different materials on the paper
4. put the vinegar in 
5. 
6. 

Findings:
I found out that the Iodine was change the colour with the cornflour and the water because the water was next to the Iodine.

	Sugar	Salt	Baking Soda	Cornflour
Appearance	white	white	white	white
Texture	small	medium	small	small
Smell	no smell	salty	no smell	no smell
Iodine	changes colour	Absorbs	Absorbs/hardens	slides
Water	wet	Absorbs	Absorbs/hardens	slides
Vinegar	wet	Fizzes	Absorbs	slides

Conclusion: 

for the experiment I have done I have identified the liquids and tried them on the powders and see the reaction to the powder.