Decimals

__**DECIMALS**__
 * Main Concept || Tasks/Activities/Resources || Quick open ended activities. ||
 * Pre testing || Prepzone4, Heinemann Maths Zone 7. || * Write down fifteen numbers between 3.01 & 3.1 (Reference 5) ||
 * Place Value

Activites listed can be used as introduction or consolidation tasks. || Write decimals has fractions (tenths etc) & fractions as decimals. Identifying value of digits in decimals. What is the decimal point, what does it do? Write decimals in worded sentences.

Dice activities to reinforce place value. Five Cards - Place value What's the number? problem solver, clues given & students work out the number. Decimal Modelling activity. Template for large digits. || * In a timber yard I found 15 pieces of timber, all different lengths but all between 2.1 & 2.2 m long. How long might each piece of timber have been? (use meter rules to help) (Reference 5) || Decimal decider, flowchart to use when comparing decimals (ref 1). In pairs - each partner give the other a list of 10 random decimals. Each student must arrange their list in ascending order. If computers are available Excel can be used to check answers using the Sort Ascending tool. || Activity 2, How much money in my pocket, include coins to link with decimals. (Ref 4, page 9) * In this number sentence, what might the missing digits be? 2< __.___ (range 2.1 to 9.9) (ref 5) || Decimal modelling activity - students forming decimals that then need to be rounded off. || * Activity 18, Take 10 seconds, pg 49, Bk 1 (Ref 3, page 49). Using a stop watch students estimate a 10 second walk that a student does from one side of the room to the other. Estimating time and finding the difference of guess to actual. Activity 23, Match-up to 1, pg 63, Bk 2. Matching decimals, fractions, % (Ref 4, page 63) ||  || Game: Wipe out....... page 28, reference 2. Simple games where students have a variety of numbers, a partner and possibly a calculator. One student changes the number, the partner must record the original number and the new number and the operation that occurred to change the number. e.g. 5476...changes to.....5276.....action taken -200. With 'wipe out' a digit is 'wiped out' and replaced by zero. E.g. 5476, digit wiped is 7, new number is 5406, action -70. Both games can be set up in table form. || * The difference between two numbers is 0.3. What might the two numbers be? (ref 5)
 * Comparing Decimals || Understand place value, compare decimals. Ordering decimals.
 * Rounding Off || Rounding off - units, tens, tenths etc
 * What numbers could be rounded off to 5.8 (ref 5) ||
 * Conversions - dec to fractions || Convert decimals to fractions and simplify where possible. Rewrite fractions as decimals.
 * Addition & Subtraction || Game: Change to...... page 27, reference 2
 * Two numbers added together give a total of 4.6, what could they be. Use different totals such as 0.1, 0.08 ||
 * Multiplication & Division ||  ||   ||
 * OLYMPICS || [[file:mini-metrics.pdf]] ||  ||
 * References || # Heinemann Maths zone VELS edition, Coffey et al
 * 1) Into Maths 7, Macmillan, Bull, Wain
 * 2) Maths on the Go, Rob Vingerhoets, Book 1, Macmillan
 * 3) Maths on the Go, Rob Vingerhoets, Book 2, Macmillan
 * 4) __//**Open ended Maths Activities**//__ **- Sullivan & Lilburn pgs 29-31**

Websites: http://www.linkslearning.org/Kids/_index.html#supermath For a list of place value site go to [|www.gamequarium.com], scroll down, Maths then Place value. Here are just a few (there a 4 pages of games listed)
 * Place Value Game. Make the biggest number withe digits given. You decide where the digit goes.
 * Place Value (rags to riches), is like who wants to be a millionaire
 * Place value game. Select the largest number
 * place value to 100,00. A number is given in words, students have to type in the number in limited time, if correct they get to fire at a target
 * Rounding off decimals. An interactive rounding decimals activity.
 * Place Value Strategy. Click a spinner, it stops on a number, you have to decide where to put that digit. Students can play individually, against the robot, or in pairs against each other.
 * Decimal and Whole number Jeopardy. Students pick a question and must answer it to gain the points. Students can play each other(pairs).
 * Place Value Pirates. Game where you get the pirates that contain a certain place value you need, to get the treaure. Time limit.