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EN
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Summer activities for lower secondary school
Product: Book
Trim size in cm: 20x27cm
Pages: 128
ISBN: 9788859044093
Publication date: 01/03/2026
Suitable for: Primary 2nd level (ages 8-10)
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Enigmatic Maths 3 is a holiday workbook designed for Year 9 students. This workbook transforms traditional exercises into puzzles, fun challenges, and intriguing stories, showing students that numbers aren’t just formulas — they’re exciting adventures. Each activity leads students towards solving a mystery: who is the great mathematician waiting to be discovered?
The workbook includes over 50 clues, which can be unlocked by solving maths puzzles and challenges. By scanning the QR codes, students can check their answers, access solutions, and uncover new hints.
SECTION 1 – Numbers
Prime factorisation
Lowest common multiple (LCM) and highest common factor (HCF)
Rational numbers and percentages
Decimal numbers
Negative numbers
Expressions with negative numbers
Generalising: letters in mathematics
Monomials and their algebraic sum
Monomials and their product
Monomials and powers
Monomials and division
Expressions with monomials
Polynomials: addition and subtraction
Polynomials: multiplication
The difference of two squares
A special product: sum times difference
Polynomials: the square of side a + b
The square of a binomial
The cube of side a + b
Expressions
Let’s find the balance
Solving a first-degree equation
The solution of a determinate equation
Spot the mistake in equations
Impossible and indeterminate equations
Words… and equations
I can read your mind
The magic of indeterminate equations
Equation mosaics
Equations
SECTION 2 – Space and shapes
Reflection symmetry
Rotational symmetry (half-turn symmetry)
Translation
Translation and rotation
Similarity
Pythagoras’ theorem
Symmetry, translation and rotation
Angles and polygons
Rectangles and squares
Rhombuses and parallelograms
Trapezia
Circle and circumference
Plane figures
The cube
The cuboid and the prism
The pyramid and the cube
The tetrahedron and the dodecahedron
The octahedron and the icosahedron
The cylinder and the cone
Solid shapes
SECTION 3 – Relationships, data and graphs
Representing simple functions
Reading and interpreting graphs
Representing data
SECTION 4 – We’re on holiday… so let’s play
A puzzle: stomachion
Numbers and… relationships between them
A solid geometry crossword
Summer activities for lower secondary school
Grazia Cotroni
Turn summer into a learning adventure — without stress!
Unlike traditional summer workbooks, our holiday activity workbooks for lower secondary school students offer a fresh, engaging approach to learning. Each volume blends curriculum-based revision in Mathematics with creative prompts, logic puzzles, and playful challenges, transforming summer study into a game-like experience.
Designed to capture the attention of young readers, these books support content retention while stimulating imagination and critical thinking. If you are seeking innovative, learner-friendly educational resources, these notebooks make learning enjoyable — anytime, anywhere.
THE VOLUMES IN THE SERIES
Enigmatic maths 1
The perfect holiday workbook for first year of lower secondary school (11 years +).
Packed with puzzles, exciting challenges, and gripping stories, this book will show students that numbers are more than just formulas — they're full of adventure! As they solve problems and search for clues, they'll uncover the identity of the great mathematician hidden behind the numbers.
The book is divided into 4 sections:
Section 1 – Numbers, the decimal system, expressions and fractions
Section 2 – Shapes and space
Section 3 – Relationships, data and graphical representations
Section 4 – Games with triangles and numbers
Enigmatic maths 2
The ideal holiday workbook for second year of lower secondary school (12 years +).
Enigmatic Maths is the ultimate companion, guiding students through a world of brain teasers, logic challenges, and engaging tales. But it’s not just about numbers — there’s a mystery to solve and a brilliant mathematician waiting to be revealed, hidden within the pages
The book is divided into 4 sections:
Section 1 – Numbers, fractions, percentages and proportions
Section 2 – Shapes and space
Section 3 – Relationships, data and graphical representations
Section 4 – Games with shapes, words and GeoGebra
THE AUTHOR
Grazia Cotroni is a Mathematics and Physics Teacher in secondary school. Since 2009 she has been in charge of the Bottega di Matematica with the DIESSE Association, she is a trainer on the topic of didactic innovation.
