Monday, 14 November 2011

Monday Nov 14th – Angle properties in lines and shapes

LEARNING OBJECTIVE: To deduce missing angles in lines, and shapes

SUCCESS CRITERIA: You will be able to use your knowledge of angles to deduce missing angles in shapes

STARTER: What are the following angles on a clock face

  1. Angle between o clock and quarter past?
  2. 5 past and 25 to?
  3. Angle between 5 past and 25 past?
  4. Angle between 10 past and 5 to?
  5. What angle does the hour hand move in an hour?
  6. What angle does the hour hand move between 1 o'clock and 5 o'clock
  7. What angle does the hour hand move in 15 mins

LESSON: Work through this Mymaths Lesson on Angle reasoning

Then work through this lesson on angles in parallel lines

Look at properties of special quadrilaterals on page 306 of Higher test book

Work through Ex 13A page 306

PLENARY: Checking answers,

Friday, 4 November 2011

Mon 7th Nov – Factorising Expressions

LEARNING OBJECTIVE: To understand how to find the common factors from expressions and put the results into a new expression including brackets

SUCCESS CRITERIA: You will be able to factorise and algebraic expression

STARTER: Use Screen 1 from this MyMaths Lesson

LESSON: Work through screens 2 to 5 in the MyMaths Lesson.

Now work through Ex 19D page 410

PLENARY: Checking answers

EXTENSION: Use screens 6 – 9 for some harder factorising questions

PLENARY: Use a couple of examples on IWB to get student 5 finger feedback on confidence

Monday, 31 October 2011

Mon Oct 31st – Algebra – Expanding Brackets

LEARNING OBJECTIVE: Discover how to remove the brackets from an algebraic expression by expanding.

SUCCESS CRITERIA: You will be able to expand an expression accurately

KEYWORDS: EXPRESSION, EXPAND, BRACKET, SIMPLIFY

STARTER:

  1. Find the value of 4b + 3 when i) b = 2.5, ii) b = -1.5, iii) b = ½
  2. Find the value of 12 / y when i) y = 2, ii) y = 4, iiI0 y = -6

Where A = a2 + b2 , find A when: i) a = 2 and b = 3, ii) a = 5 and b = 7, iii) b = -1 and c = -4

LESSON: Work through This MyMthas Lesson.

Have a go at Ex

Saturday, 15 October 2011

On 17 Oct – Box Plots

LEARNING OBJECTIVE: To discover how to represent the Information from a Cumulative Frequency Graph as a box plot and interpret the results

SUCCESS
CRITERIA: You will be able to create a box plot from a cumulative frequency curve and also interpret the results from a box plot

STARTER: Average Smile

LESSON: Work through this Mymaths Lesson on Creating a Box Plot

Now work through Ex 2E on page 58 of Higher Text Book

EXTENSION
QUESTIONS: Page 103 – 105 in Uni1 Higher Text Book

PLENARY: Checking answers then Final
Screen of Mymaths Lesson as a 'test'

Sunday, 9 October 2011

Mon Oct 10th – Building a Cumulative Frequency Table and then Drawing the Cumulative Frequency Curve on a Graph

LEARNING OBJECTIVE: How to Add a cumulative Frequency Column to a Frequency Table and then draw the Cumulative Frequency Graph

SUCCESS CRITERIA: You will be able to add a cumulative Frequency Column to a frequency table and then draw the resulting Cumulative Frequency Curve.

STARTER: Use Screen 1 from this MyMthas Lesson

Cumulative Frequency Videos

LESSON: Use screens 2 – 4 to recap cumulative Frequency Curves and finding the median from the cumulative frequency.

Move on to This Mymaths Lesson to look at Cumulative Frequency From Grouped Data

Lots of Practice from this Worksheet. For each Table wirte down the Median value from your graph

PLENARY: Checking answers on MyMthas Screens, going around tables to check answers from Worksheet

Saturday, 1 October 2011

Mon 3rd October – Mean from a grouped frequency Table

LEARNING OBJECTIVE: Apply the method to find the mean from grouped table of data

SUCCESS CRITERIA: You will be able to find the mean from a grouped frequency table

STARTER: Put screen 6 on IWB from this MyMthas Lesson (discrete data) and ask students to work out the mean

Work through answer with them after giving them some time to complete it.

IF ANY Issues use next screen for a further example.

LESSON: Work through the first screen of this Mymaths lesson to show how to find the mean from a grouped frequency table of continous data. Hand out grids in order to complete the mean for teh boys data

PLENARY: Use MyMthas screen to check data.

Let them work through next example on sheet 'Nicole's Cucumbers'. Check answers.

Repeat Nicole's Cucumbers on IWB as MyMaths generates a new example every view.

EXTENSION: Ex 1c Page 9 of Higher GCSE Text Book

PLEANRY: Checking answers, feedback from students


 

Sunday, 18 September 2011

Mon Sep 19th – The Data Handling Cycle

LEARNING OBJECTIVE: Learn the four stages of the dta handling cycle and use them to plan a data collection activity.

SUCCESS CRITERIA: You will be able to plan a the stages of a data handling exercise given an hypothesis

STARTER: Stratified Sampling Revision - Answer questions 3 & 4 from these questions


 

LESSON: You have 7/8 mins in your teams to decide how you would prove or disprove that:

"there are longer sentences on average in magazines aimed at males than in magazines aimed at females"

Ask some teams to read out their plans to prove or disprove this hypothesis and discuss them.


 


 

Show the data handling cycle in the IWB discuss the four stages of the data handling cycle, with reference to the above Hypothesis.


 


 


 


 


 

Question 1

Mary is looking at costs of different tariffs with mobile phone operators.

Put these stages of the Data Handling Cycle in the correct order.

  1. Mary compares the values of the means and concludes which operator is cheapest.
  2. Mary states the hypothesis 'Superphone is the cheapest mobile operator'.
  3. Mary decides to calculate the mean cost of tariffs for several operators.
  4. Mary collects data for the cost of various tariffs for several operators.

Question 2

  1. Sally wants to investigate whether food is cheaper at the supermarket at the weekend compared to with during the week.
    How could she address this problem?
    In your answer refer to the stages of the Data Handling Cycle.

Exam Question

Ajay wants to test this hypothesis:

"families with more income own more mp3 players" 

Use the data handling cycle to write a plan for Ajay.


 


 

Sunday, 11 September 2011

Mon Sep 12th – What is sampling and how to find a Stratified Sample of a given population

LESSON OBJECTIVE: Gain some understanding of what is meant by sampling and be able to find a stratified sample from a population

SUCCESS CRITERIA: You will be able to explain the terms, Population, Sample, bias and will be able to find a stratified sample of a population

STARTER: Using this Mymaths Lesson Discuss populations, census and sample

LESSON: Quickly look at the various types of sampling methods available using above MyMthas Lesson

Introduce Stratified Sampling Using This MyMthas Lesson from screen 4 onwards

Have a go at these questions

PLENARY: Checking answers, Questions on Keywords with five finger feedback from students