In 2021, nearly one in five people in Canada could have a conversation in both official languages. How has this changed over time? Comes with a follow-up assignment for grades 7-10+ that asks students to analyze how using total count of people vs a rate shapes our understanding, and then make a new data visualization. in English + Français

I sat down next to first grader Grace as she worked on a few subtraction problems. She was holding her pencil carefully — duck grip — with eyes tightly focused on her paper. I peered ov…

I sat down next to first grader Grace as she worked on a few subtraction problems. She was holding her pencil carefully — duck grip — with eyes tightly focused on her paper. I peered ov…

How much sugar is there in a miniature candy bar? Compare different "fun size" bars using a scaled pictograph.

Is Congress still getting older? Look at the average age by Congressional body (Senate, House) at the start of the session, over time. What factors might be contributing to this?

The music industry makes more money from individual songs than from the sales of albums -- but that wasn't always true. When did it change, and what may have impacted this shift?

Do the Academy Award winners for Best Picture win in lots of other categories? What awards seem the most tied to the Best Picture win?

Do views of a film's trailer on YouTube turn into box office $$?

Why are European heat waves so much deadlier than similar temperatures in the US?

Why are European heat waves so much deadlier than similar temperatures in the US?

by Jenna Laib So you want to share slow reveal graphs with colleagues! I am thrilled! While I'm the person that popularized the routine, I did not create it on my own, and I hope that it has a life beyond me and my collaborators. After I give a session -- whether it's at a conference or a private PD -- there are typically a few requests for slides.

Why are European heat waves so much deadlier than similar temperatures in the US?

Manned (and Unmanned) Missions to Space by Russia, the US, and China (1961 - 2026)graph from Space Stats Online & Julia Wendling/Jennifer West; slow reveal by Jenna Laib Type of Graph: stacked bar graph Purpose This slow reveal is designed to support analysis and discussion of both the data and the design choices. The questions in the slide deck…

During the school year, I spend time thinking about math games for the classroom. Most often, I'm thinking content first. I adapt games with structures I love, like Number Boxes, to highlight different ideas or flex different skills. These games serve many purposes -- learn more about student thinking, develop mathematical reasoning and strategies, exercise social skills -- but the primary function is curricular.

LeBron James' Salary By Season (2003-2028)graph from Sportico/Lev Akabas; slow reveal by Jenna Laib Type of Graph: bar graph Purpose This slow reveal is designed to support analysis and discussion of both the data and the design choices. The questions in the slide deck invite learners to identify trends, estimate values, and compare values, as well as making connections to sports and what students know about the salaries of professional players.

Chlorophyll in the North Atlantic: Examining Seasonal Cycles

How many times have different countries won the World Cup?

How many times have different countries won the World Cup?

How many times have different country's teams appeared in the FIFA World Cup? Updated for 2026!

How tall are professional soccer players? This graph -- the first box plot on Slow Reveal Graphs -- explores whether height may be advantageous for different positions in soccer/football. Click to access the slide deck, and learn more about math & content connections.

An Instructional Routine to Promote Sensemaking about Data

A lovely little way to learn about the world

The Oldest Names in the US How old would you expect a Myrtle to be? ...a Gertrude?

Billboard Hot 100: Artists With The Most #1s Drake recently surpassed Michael Jackson as the solo male artists with the greatest number of #1 hits. What other artists made the list?

*Looks at date of last post* Well, this is embarrassing. What happened? A lotta story time for another time. Let’s start in the present. I’ll be teaching 3 sections of precalculus and 2…

"It's Not Just a Trend -- It's a Phenomenon": AI-Signifying Sentence Structure in Corporate Documents Doubled From 2024 to 2025

The End of an Era: Percentage of #1 Hit Songs with a Key Change

Across the World, Readers Prefer Printed Books to eBooks

Global Access to Electricity, 2000 - 2023 The global number of people without access to electricity has halved since 2000, but it has increased in Sub-Saharan Africa.

Formats for Daily Screen Viewing, US Children Ages 0 to 8

Impact of the Voting Rights Act of 1965 on Black Representation in the US House of Representatives

Slow Reveal Graph Blog: Facilitation Tip - First Slide Print Out

One-hundred Italian chefs gathered at Chelsea Town Hall to break the world record.

Global Access to Electricity, 2000 - 2023 The global number of people without access to electricity has halved since 2000, but it has increased in Sub-Saharan Africa.