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Triangle

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Lists This Book Appears In

Year 2 reading list for children aged 6-7

These links show the original reading lists. Inclusion is not a guarantee of suitability for your child.

Mac Barnett - Author

A playful, visually driven friendship story that uses repeated shapes, deadpan humour and reciprocal pranks. It offers opportunities to notice triangles and squares while inviting discussion about teasing, fear and unintended consequences.

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Book Analysis

At a Glance

Discover

FriendshipTeasingReciprocity

Consider

Fear and suspenseSocial conflictFrightening scenes

Personalised Fit

Beyond the Cover

friendshipteasingreciprocityshapespatternnumeracyfeelingsfearconsequences

FictionPicture book

Themes in Context

Friendship through pranks

Use the friends’ exchange to discuss how teasing can be interpreted differently by the person giving and receiving it.

How the book presents it: The friendship is sustained despite conflict, but the tricks involve deliberately provoking fear; the comic framing does not make the behaviour wholly caring.

Talk about: Whether the characters regard this teasing as mutual fun, or whether either friend feels genuinely harmed, is worth discussing.

Learning through visual form

The visual design repeatedly contrasts triangle- and square-based homes, doors and surroundings.Exploratory / explanatory

How the book presents it: The repeated visual contrast makes recognising two shapes a central informational feature within the fictional story.

Talk about: Which shapes can the child identify beyond the two named characters, and how might different shapes fit together?

Actions and consequences

The story connects the characters’ choices with changing feelings and an unexpected reversal.

How the book presents it: The story links actions with unexpected consequences, while keeping the tone playful rather than presenting a straightforward moral lesson.

Talk about: How might each character have acted if they had first considered the other’s feelings?

Why It May Be Worth Reading

This may suit a child who enjoys visual pattern, silly suspense and friendships that are more mischievous than tender. The shape-filled settings also provide a natural starting point for talking about symbols and noticing geometry in everyday surroundings.

What Deserves Attention

Consider whether the story’s humour makes the friendship feel caring, competitive or both. The practical jokes are part of the relationship, but the friendship is not presented as simply ‘warm and fuzzy’.

A Conversation Worth Having

When does a joke stop being enjoyable for the person receiving it? Do Triangle and Square understand one another better after their tricks, or does the ending leave that relationship unresolved?

Reading Approach

Read it interactively: pause to identify shapes in the homes and landscape, predict how the story might end, and revisit the final question. Afterwards, compare the characters’ choices with considerate friendship.

Confidence & Basis

Theme indicators describe how the book presents a topic; they are not a verdict on the whole book or your family's values. Confidence reflects how much book-specific material was checked. Only part of the book information was available, so some details remain unconfirmed.

What remains unconfirmed

Friendship through pranks: Some details of this treatment remain unclear.
Learning through visual form: Some details of this treatment remain unclear.
Actions and consequences: Some details of this treatment remain unclear.

Triangle

Limited information

Checked: 19 September 2026.

Relevant to: Friendship through pranks; Learning through visual form

Triangle

Limited information

Checked: 19 September 2026.

Relevant to: Actions and consequences

Benefits, discussion questions and reading approaches are suggestions. Your knowledge of your child remains part of the decision.

Heidi

Heidi

Triangle

Lists This Book Appears In

At a Glance

Discover

Consider

Personalised Fit

Beyond the Cover

Themes in Context

Friendship through pranks

Learning through visual form

Actions and consequences

Why It May Be Worth Reading

What Deserves Attention

A Conversation Worth Having

Reading Approach

What remains unconfirmed