Measurement

__Tuesday 29 March__

Exploring the concept of speed. Students will realise that speed is made up of two measurements, one of distance travelled, and one of time taken. These two measurements can be used to calculate speed, which can be converted to different units.

L.I. Students will be able to 1. use appropriate scales, devices & metric units for length, area, volume & capacity, weight (mass), temperature, angle and time. 2. convert between metric units, using whole numbers and commonly used decimals. 3. use a range of multiplicative strategies when operating on whole numbers. S.C. We will (nzmaths.co.nz)
 * calculate speed from measured distance and time
 * solve multiplication problems using doubling and halving strategies
 * use know multiplication facts to solve multiplication problems

__Tuesday 29 March 2011__

My Estimation for running km per hour 10 km per hour After the test I discovered that I can run 12 km per hour

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__Wednesday 30 March 2011__ Time taken 100m = 18 seconds 19x10=190 190÷60=3.16 60÷3.16=18km per hour

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__Thursday 31 March 2011__

1• What speed can a student travel on bike.

Estimation 25km per hour Actual 20km per hour 60÷3=20

2• How many meters per second can a student travel be bike?

Estimation 5 meters per second Actual 3 minutes to seconds = 180 1000 ÷180=5.5 meters per second

Reflection I now know how to turn minutes in to kilometers and how many seconds per minute. I still find it a bit tricky but I have to think really hard about it other wise I have know clue whats going on or I get stuck on the question and that's when I found it really hard. The figure it out book was really hard and to be honest I really didn't get it at all and it was so hard and it made no sense.

Friday 1 April 2011

100 m Men - 9.58 Usain Bolt Woman - 10.49 Florence Griffith Jayner

200m Men - 19.19 Usain Bolt Woman - 21.34 Florence Griffith Jayner

1km Men - 58.875 Arnaud Tourant

500m Woman - 34 Anna Meares

How many km per hour

100m Men - 44 km per hour Woman - 41 km per hour

200m Men - 44 km per hour Woman - 41 km per hour

500m Woman - 55.55 km per hour

1km Men - 61.2 km per hour

Meters Per second

100km Men - 10.43 per second Woman - 9.53 per second

200km Men - 10.42 per second Woman - 9.37 per second

500m Woman - 14.7m per second

1km Men - 68.87 m per second