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- ╖@WeightingScore 12,3,1,1
-
- @atGraphic 5,12
- @Picture algebra\a010102.bmp
- @at 50,10
- Complete the first five numbers in the
- triangular number pattern below.
- @InputWidth 20
- @at 5,+12
- 1st term 2nd term 3rd term 4th term 5th term
- @at ,+1
- 1 #[N] #[N] #[N] #[N] _
-
- Remember a triangular number must form a
- triangle when drawn out.
-
- @Answer 4, 3, 6, 10, 15
- @Feedback E1,?,?,?,?
- Nearly right, remember that a triangular
- number must produce a triangle if drawn
- out.
- @Feedback 0,?,?,?,?
- No, every triangular number must
- produce a triangle if drawn out.
-
-
-
-
-
-
-
-
-
- @question
- @at ,+5
- 1st term 2nd term 3rd term 4th term 5th term
- 1 3 6 10 15
- @at ,+5
- The rule for a triangular number pattern is :
- @at ,+5
- #bTo find the next term find the difference#
- #bbetween the last two terms add 1 then#
- #badd the result to the last term.#
- @at ,+4
- What is the value of the 6th term?
- @at ,+2
- Enter the numbers in the following calculation.
- @at 50,+5
- #^ #^ #^ #^ #^
- #t#[N] #t- #t#[N] #t= #t#[N]_
- @Answer 3,15,10,5
- @Feedback E1,?,?,?
- Partly right, you find the difference
- between the last two terms.
- @Feedback 0,?,?,?
- No, you find the difference
- between the last two terms.
-
-
-
- @question
- #t#[N] #t+ #t 1 #t= #t#[N]_
- @answer 2,5,6
- @Feedback E1,?,?
- partly right, you should add 1 to
- the difference between the last
- two terms.
- @Feedback 0,?,?
- No, you should add 1 to the
- difference between the last
- two terms.
-
-
-
- @question
- #t#[N] #t+ #t#[N] #t= #t#[N]_
- @answer 3,1&2=15|6,*,21
- @Feedback E1,?,?,?
- Partly right, you should add the result
- of the last calculation to the last term.
- @Feedback 0,?,?,?
- No, you should add the result of the
- last calculation to the last term.
- @feedback 3
- That's right. You should add the result
- of the last calculation to the last term.
-