Maths assesment

I can apply the strategy to problem solving questions

Strategy: Deduce the angle properties of intersecting and parallel lines and the angle properties of polygons and apply these properties.

 

Take a piece of paper.

Fold it along the long axis and then open it up.

Now fold one corner over and onto the centre crease so that the fold line passes through the corner next to it (on the short side of the paper).

You have created some angles. There are angles of 60o and of 30o. Can you prove this? Explain your answer

Because a triangle is 180 degrees there is already 90 degrees in the triangle there must be 60 degrees and 30 degrees and add that together makes 90 degrees and 90 degrees + 90 degrees equals 180 degrees.

My Extended abstract task

Use a range of multiplicative strategies when operating on whole numbers

I can apply the strategy to problem solving questions

The escape

A prisoner sits in his cell planning his escape. The prisoner is kept in by 5 laser beams, which operate along a corridor. Each laser is switched off at a specific time interval for just long enough to allow a person to walk through. The time between being switched off for each laser is shown below:

• Laser One = every 3 minutes
• Laser Two = every 2 minutes
• Laser Three = every 5 minutes
• Laser Four = every 4 minutes
• Laser Five = every 1 minutes

The guard patrols and checks the prisoner each time all the laser beams are off simultaneously. Because each laser only switches off for a short time the prisoner knows he can only get past one laser at a time. He has to get past the five lasers from 1 to 5 in order. Laser One is at the entrance of the prisoner’s cell and laser Five is at the door to the outside. He also knows that if he spends longer than 4 minutes 12 seconds in the corridor an alarm will go off.

Can the prisoner escape without the alarm in the corridor going off?

No he can't because he will wait in his cell for three minutes and then go through the first one, then he will wait another minute going through the second, and then wait another minute to get through the third one, then he has to wait another 3 minutes to get through the fourth one, then he has to wait another minute to get through the last one. So that is 6 minutes which will make the alarm go off.

If he can escape, how many minutes should he wait before passing Laser One?

3 mins because it’s 3 minutes until the laser turns off so he has to wait until it turns off.

How much time will he have after passing Laser Five before the guard raises the alarm?

None because it will take 1 minute and 48 seconds to get out after the alarm goes off.

Use simple fractions and percentages to describe probabilities

Assessment task: Use simple fractions and percentages to describe probabilities

Question 1:

Show your working and answer here:

Because there is 15 toppings choices that they could get the chances of getting what she wanted is a 1/15 chance

Question 2:

Show your working and answers here:

2a: $1 because the twins only want the same colored bubble gum it didn’t say they wanted all types and the bubble gums cost 50 c therefore it is $1

2b:$3 because again they cost 50c and there is 3 bubble gums and the twins want 1 of each color, 50 c x 6 = $3 therefore $3

2c:$1.50 because there are 3 kids and the bubble gum is 50 c and they only want one type of bubble gum therefore $1.50

Question 3:

24 because it said he misplaced and broke it 6 times and 6 x 4= 24

It said how many possible ways could he have placed it if he did it 100 times 100 x 4= 400

                                                                      

What is you next step?

To try work the questions out with a different strategy

Finally, add the screenshots from the 3 IXL activities you did here:

Activity One
Activity Two
Activity Three

SML maths

WALT: Solve multiplication problems using the standard written form with 1 and 2 digits with Algorithms
4 2                44
253               378
     9 x                6 x
2277             2248
3 x 9= 27        6 x 8=48
5 x 9 +2=47    7 x 6+4=46
9 x 7 + 4=22    3 x 6 + 4=22

Maths

IALT I can recall the divisibility rules for 2,3,5,9 and 10

What I have been learning about the divisibility rules 

So What I have learnt most of the divisibility rules off by heart example can 2451 be divided by 3 yes because 2+4+5+1=12 and 12 / 3=4

Now What Use more divisibility rules than just 3 and 2