# Javier Haro

### Math Monday: Digit Sums

Javier will introduce students to the idea of digit sums -a number found by adding up all the digits within a number. He will present students with a puzzles about placing numbers in connected graph so each number is the result of all of its neighbors digit sums. Register for the event here.

### Math Monday: Magic Squares

This week we will be looking at Magic Squares - a puzzle where you must place numbers in a square grid so that each row, column, and diagonal adds up to the same number. Register for the event here.

### Math Monday: Bubbling Cauldrons

Your goal is to place as many numbers in the cauldrons as possible, but these cauldrons are unstable! If two numbers in a cauldron add to a third number in the same cauldron, they bubble over and explode! Placing consecutive numbers, how high can you reach before the cauldrons explode? Register for the event here.

### Math Monday with Scott Kim

Join Scott as he leads us through our last Math Monday session for the Fall Term. This session is available for all students ages 7 - 12 and their families. Register for the event here.

### Math Monday: Humans and Zombies and Other Problems Crossing the River

Based on the classic puzzle, students will need to think carefully about how to ferry humans, zombies, and other assorted creatures and objects across a river in a boat that is just way too small. This lesson will be hosted by Javier Haro and use virtual manipulatives created in Desmos Activity Builder with follow up activities …

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### Math Monday: Prejudiced Polygons

Students will explore a neighborhood populated by Squares and Triangles that are slightly "shapist" (but only slightly) and don't seem to coexist too well. Presented by Javier Haro and based off the "Parable of the Polygons" by Vi Hart and Nicky Case as well as the MTC lesson by Dr. Anne Ho and Dr. Jaime. …

### Math Monday: The Monty Hall Problem

"Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, …

### Math Monday: Skyscraper Puzzles

Skyscrapers come in so many different sizes! Sometimes you can’t see small skyscrapers if tall ones are in front of them. Using clues about how many skyscrapers you can see from each side you look at them, can you figure out the layout of the entire city? Javier Haro will challenge students' puzzle-solving ability in …

### Math Monday: Don’t Say 13

The rules to this game are simple -just Don't Say 13... That should be easy right? This activity will explore a classic math problem, give students an idea of how to strategize, and learn about modular arithmetic. Math Mondays meets at 2pm, Los Angeles time zone. Zoom Link

### Math Monday: Puppies & Kittens

A local animal shelter has a puppies and kittens available for adoption that you just happen to be itching to own! In this week’s “paw-some” activity, two players begin with a certain number of animals to choose from and take turns adopting animals. The player to adopt the last animal wins! We'll be constructing a …

### Math Monday: The Dollar Game

A group of people, some that just met, have a dilemma. Some people owe money and some have money. Problem is that only people that know each other, connected by nodes, can give or lend a dollar. But they must give each person they know a dollar, even if that puts themselves in debt!! Javier …