# Robertson Blog

## Symmetry: A foundational concept in STEAM

The drive for symmetry is already apparent in the play of young children, who show growing inclination and ability to create spatially regular and patterned forms with art or construction materials and will often persevere to an astonishing degree to select the precise block needed to maintain the symmetry of a construction.

## Spatial reasoning: A toolkit with lessons

Spatial activities categorized by process, such as mental rotation, perspective taking, visualization and mapping. More than 30 lessons for early years, primary and junior educators — free to use with students! Includes background info on the benefits of spatial reasoning in mathematics education.

## Using clinical interviews to uncover students’ place value misconceptions

The ability to identify and match numbers is important, but what is often missing is foundational understanding of place value. Interview-style approaches can reveal how a student thinks about ones, tens and eventually hundreds, thousands, and beyond.

## Number Assessment Toolkit

4 quick, efficient, student-friendly assessments that help educators better understand the mathematical strengths and needs of students.

## Seeing the joy in math

Dr. Julie Comay explores how learning math is filled with joyful possibilities. In her message at this year’s meeting of the National Council for Teachers of Mathematics (NCTM), president Trina Wilkerson delivered a stirring call for bringing joy into mathematics classrooms. The positive language and hopeful sentiments represent a welcome

## Whole Number Bias and 3 Misconceptions about fractions in Junior Math

Whole number bias is the tendency to apply or misapply one’s understanding of whole numbers or natural numbers – the numbers we typically count with – to rational numbers. It makes sense that people might apply what they have learned about whole numbers, like 1, 2, 3, 4 and 5 to their understanding of fractions, but unfortunately this leads to all kinds of misunderstandings about fractions.

## 3 Misconceptions in Primary Science

Taking time at the beginning of a science unit to allow students to share or document how they understand and relate to a topic is an opportunity for educators to see and hear how their students are making sense of the world. It brings to light the foundational thinking with which students will be building their scientific knowledge.

### Teaching Math Through Story: Book-A-Day Giveaway 2022

For five consecutive days beginning on December 12, 2022, The Robertson Program will give away two story books that inspire mathematical learning. The first book will be given to a Twitter follower who “Quote Tweets” the daily giveaway pos. The second book will be given to a tagged friend.

### 7 ways to observe ice and snow with students this winter

Taking children outside to observe nature in winter has its challenges, but colder weather allows curious minds to contemplate the influence of factors like temperature and atmosphere. 7 ideas to engage students in outdoor learning during winter,
adaptable for any type of outdoor environment.

### Symmetry: A foundational concept in STEAM

The drive for symmetry is already apparent in the play of young children, who show growing inclination and ability to create spatially regular and patterned forms with art or construction materials and will often persevere to an astonishing degree to select the precise block needed to maintain the symmetry of a construction.

### Spatial reasoning: A toolkit with lessons

Spatial activities categorized by process, such as mental rotation, perspective taking, visualization and mapping. More than 30 lessons for early years, primary and junior educators — free to use with students! Includes background info on the benefits of spatial reasoning in mathematics education.