Study guides
Find a topic, check your course details and build your understanding.
Search a set text, topic, awarding organisation, qualification or course code. Check the version shown on each guide.
Showing 6691–6720 of 12584 guides
Biology
(c) the structure of ADP and ATP as phosphorylated nucleotides
OCRA-Level
H420
Biology
(d) (i) the structure of DNA (deoxyribonucleic acid)
OCRA-Level
H420
Biology
Nucleotides and nucleic acids: (e) semi-conservative DNA replication
OCRA-Level
H420
Biology
Nucleotides and nucleic acids: (f) the nature of the genetic code
OCRA-Level
H420
Biology
(g) transcription and translation of genes resulting in the synthesis of…
OCRA-Level
H420
Biology
(ii) practical investigations into the purification of DNA by precipitation
OCRA-Level
H420
Mathematics
Number
Pearson EdexcelGCSE
601/4700/3
Mastering fractions, decimals, and percentages is the foundation of GCSE Mathematics. This topic unlocks marks across the entire specification, teaching you how to fluently convert between forms and apply the powerful multiplier method to solve percentage change problems quickly and accurately.
Mathematics
Number
Pearson EdexcelGCSE
1MA1
Master the foundation of mathematics with our comprehensive guide to Number. From BODMAS and prime factors to standard form and surds, secure the essential skills that underpin the entire GCSE specification.
Mathematics
Number
AQAGCSE
8300
Master the fundamentals of Number, the bedrock of the GCSE Maths specification. From fraction conversions to index laws and prime factorisation, this topic is essential for securing marks across all three papers.
Mathematics
Number
EduqasGCSE
WJEC-GCSE-Mathematics
The Number topic is the foundational bedrock of GCSE Mathematics, covering everything from basic arithmetic and prime factorisation to standard form and surds. Mastering this topic is essential because it not only secures significant marks in its own right, but also underpins every other area of the specification, from algebra to statistics.
Mathematics
Fractions in ratio problems
Pearson EdexcelGCSE
1MA1
A ratio such as 3:5 can mean 3/8 of the whole or 3/5 of another share: the comparison decides the denominator. Master that distinction, then use one equal part to solve known-total, known-share and difference problems while showing the working that can earn exam marks.
Mathematics
Interpret fractions and percentages as operators
Pearson EdexcelGCSE
1MA1
Mathematics
Converting fractions and decimals
Pearson EdexcelGCSE
1MA1
Mathematics
Converting recurring decimals to fractions
Pearson EdexcelGCSE
1MA1
Turn an endless decimal into an exact fraction by making its repeating tail disappear. This Higher-tier guide builds from 0.375 = 3/8 to delayed repeats and examiner-quality proofs, with worked solutions, a ten-minute tutor podcast and questions that test what you can recall.
Mathematics
Apply and interpret limits of accuracy (Foundation tier)
Pearson EdexcelGCSE
1MA1
Limits of accuracy reveal the possible true values hidden behind a rounded measurement. Learn to find the half-unit interval, include the lower endpoint, exclude the upper endpoint, and explain what those limits mean in context. The Foundation core is clearly distinguished from the requested box-fitting enrichment.
Mathematics
Apply and interpret limits of accuracy, including upper and lower bounds…
Pearson EdexcelGCSE
1MA1
Mathematics
Estimate answers; check calculations using approximation and estimation,…
Pearson EdexcelGCSE
1MA1
Spot a calculator slip before it costs you marks: turn awkward numbers into a calculation you can check in your head. This Pearson Edexcel GCSE guide teaches input rounding, sensible estimates and justified overestimates or underestimates, with original exam-style questions, diagrams and a ten-minute female-tutor podcast.
Mathematics
Round numbers and measures to an appropriate degree of accuracy (e.g. to a…
Pearson EdexcelGCSE
1MA1
Mathematics
Use standard units of mass, length, time, money and other measures…
Pearson EdexcelGCSE
1MA1
Mathematics
Apply systematic listing strategies (Foundation tier)
Pearson EdexcelGCSE
1MA1
Turn a guessing game into a reliable method for finding every possibility exactly once. This Foundation guide shows you how to organise lists, avoid repeated or forbidden outcomes, and turn clear working into exam-ready answers.
Mathematics
Apply systematic listing strategies, including use of the product rule for…
Pearson EdexcelGCSE
1MA1
Mathematics
Apply the four operations, including formal written methods, to integers,…
Pearson EdexcelGCSE
1MA1
Mathematics
Calculate exactly with fractions and multiples of π (Foundation tier)
Pearson EdexcelGCSE
1MA1
Exact answers protect accuracy: fractions preserve part-whole values and π preserves the true circle value. Master common denominators, reciprocals and radius-based formulas so that you can secure Foundation marks without turning an exact instruction into a rounded decimal.
Mathematics
Calculate exactly with fractions, surds and multiples of π; simplify surd…
Pearson EdexcelGCSE
1MA1
Mathematics
Calculate with and interpret standard form A × 10ⁿ, where 1 ≤ A < 10 and n…
Pearson EdexcelGCSE
1MA1
Mathematics
Roots and fractional indices
Pearson EdexcelGCSE
1MA1
Turn intimidating powers into three manageable instructions: root, power and reciprocal. This Higher-tier guide shows how to calculate exact values, simplify to one base and make your working earn credit in Pearson Edexcel GCSE Mathematics.
Mathematics
Calculate with roots, and with integer indices (Foundation tier)
Pearson EdexcelGCSE
1MA1
Mathematics
Order positive and negative integers, decimals and fractions; use the…
Pearson EdexcelGCSE
1MA1
Why is −9 smaller than −2, but 0.4 greater than 0.38? Master number-line position, place value and fraction equivalence to order mixed numbers confidently and use all six comparison symbols accurately in Pearson Edexcel GCSE Mathematics.
Mathematics
Recognise and use relationships between operations, including inverse…
Pearson EdexcelGCSE
1MA1
Mathematics
Use positive integer powers and associated real roots (square, cube and…
Pearson EdexcelGCSE
1MA1
A week of Premium from your first lesson · Then the free plan continues · No card, no charge