43 - 45 Months

Welcome to The Problem Solver Play Kit for months 43-45

Your 3-year-old loves to compare, organize, sort, and categorize—it’s their way of making sense of the world. When they were younger, they may have called all four-legged animals “dog” and anything circular “ball.” At age 3, their categorizations are getting more sophisticated, and they are likely beginning to notice differences in people.

Your child also may be starting to recognize numbers, patterns, sequences, and shapes. You can tell them that, just like stories and letters, math and numbers are all around them. Before, they may have recited numbers in order without knowing what each one signified. Now, they are beginning to understand that each number represents a quantity that can be counted.

The playthings, books, and learning toys in The Problem Solver Play Kit support your 3-year-old’s desire to categorize, and the increasingly complex way they understand the world and their place in it. Use these educational tools to invite your child to measure, count, mix colors, learn about people, take turns, and more.

The Problem Solver is accompanied, as always, by our Play Guide. It contains all our research, some helpful tips to keep in mind as you navigate new changes, and more at-home activity ideas.

What’s Inside
The Problem Solver Play Kit

Turtle Hatch Game

Turtle Hatch Game

Practice taking turns with a fun and collaborative board game

Montessori Math Bars & Number Tiles

Build math fundamentals visually with concrete objects to count, line up, and compare

Montessori Math Bars & Number Tiles
Number Sense Nature Counters

Number Sense Nature Counters

Learn to count with 55 counters in 10 animal and nature characters


Size It Up Measuring Tape

Made just for them with a soft pull tab, push bottom, and exposure to both cm and in

Wooden Wobble Puzzle


Wooden Wobble Puzzle

Solve a STEM puzzle in three dimensions

Liquid Color Lab

Experiment with self-directed color blending with 6 test tubes, 2 water droppers, a bamboo towel set, and plenty of color tablets

Liquid Color Lab
‘Uncle Rob's Pizza Party' Book


‘Uncle Rob’s Pizza Party’ Book

A story featuring a loved one with a disability to help your child understand differences


Get Started Guide

Visual instructions for the Montessori Math Bars & Number Tiles and Number Sense Nature Counters for your independent 3-year-old

Get Started Guide
Play Guide for Months 43, 44, 45

Play Guide for Months 43, 44, 45

Ways to play, expert tips, development information, and at-home activity ideas during months 43, 44, and 45

Add the Book Bundle
to The Problem Solver Play Kit

Easy to add to your current Play Kit Subscription
or to a new Play Kit Subscription

  • ‘Measurement Day’ Hardcover Book
  • ‘Measurement Day’ Hardcover Book
  • ‘Measurement Day’ Hardcover Book
  • ‘Measurement Day’ Hardcover Book

‘Measurement Day’ Hardcover Book

This is a story about conflict resolution and compromise as a brother and sister argue over a measuring tape found in the toy bin. 

  • ‘You Decide’ Hardcover Book
  • ‘You Decide’ Hardcover Book
  • ‘You Decide’ Hardcover Book
  • ‘You Decide’ Hardcover Book

‘You Decide’ Hardcover Book

 Children are learning that the decisions they make now can affect what happens next. This choose-your-own-path book helps your child make the connection between a choice and its consequence.  

Learn about Book Bundles, more Lovevery stories for, and inspired by, your growing child.

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Posted in: 43 - 45 Months, Language, Math, Cognitive Development, Product Recommendations

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