755 prompts matching "An argument written in words and tested for validity"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Zero index rule
I am in SS 1. I'm going to explain the zero index rule, showing why any nonzero number rai
Fractional indices as roots
I am in SS 1. Teach me fractional indices, converting between root form and index form, su
Solving index equations with matching bases
I am in SS 1. I'm going to explain solving an index equation by rewriting both sides with
Comparing the size of two large index numbers
I am in SS 1. Quiz me with 5 short Additional Maths questions on comparing the size of two
Simplifying a fraction of two bracketed index terms
I am in SS 1. I'm going to explain simplifying a fraction of index expressions down to a s
Solving 4^x = 8^(x-1) by matching bases
I am in SS 1. I'm going to explain solving the equation 4^x = 8^(x-1) by writing both side
Index equation with equal exponents, unknown base
I am in SS 1. Teach me solving an equation of the form x^3 = 125 for an unknown base x the
Index expression with three unknown letters
I am in SS 1. I'm going to explain simplifying an expression with three letters and mixed
Estimating the value of a surd
I am in SS 1. I'm going to explain estimating the approximate value of a surd such as root
Dividing surds using the quotient rule
I am in SS 1. I'm going to explain simplifying a quotient of surds using the rule root a d
Simplifying nested surds
I am in SS 1. I'm going to explain simplifying an expression containing a surd within a su
Rationalising a denominator with three surd terms
I am in SS 1. I'm going to explain rationalising a more unusual denominator involving more
Drawing a two-set Venn diagram from data
I am in SS 1. I attempted an Additional Maths question on drawing a Venn diagram for two o
Reading values off a completed Venn diagram
I am in SS 1. Teach me reading and interpreting information from a completed two-set Venn
Working backwards from Venn diagram totals
I am in SS 1. I'm going to explain a Venn diagram question where I am given some regions a
Number of elements in a set from a Venn diagram region count
I am in SS 1. I'm going to explain counting n(A only), n(B only) and n(A and B) separately
Logical reasoning puzzle solved using sets
I am in SS 1. I'm going to explain a short logical reasoning puzzle about groups of people
Finding the nth term of a geometric sequence
I am in SS 1. Quiz me with 5 short Additional Maths questions on finding the nth term form
Recognising arithmetic vs geometric sequences
I am in SS 1. Teach me how to tell from a list of numbers whether a sequence is arithmetic
Finding a term given the sum of a series
I am in SS 1. I'm going to explain finding a specific term of a sequence by first finding