Mariela Santillana is a curriculum designer and the founder of Math Tech Connections. She is a former classroom teacher who is passionate about creating engaging, standards-aligned resources for grades 1–6.
Third Grade Math Sorting activities are engaging and encourage critical thinking during math centers! Easily differentiate this interactive math activity by using the sorts with or without the labels. Ways to use: math warm ups, small group lesson, independent math center, partner activity, math assessment, or homework! What is Included?- 184 Printable and Digital math sorts! - Student Notebook Dividers - Students keep their math sorts notebook organized with these dividers. Includes lea
Support student understanding of key 3rd grade math skills with this growing bundle of printable math support mats and graphic organizers. These reusable math mats combine visual math notes, worked examples, strategy reminders, and open workspace to help students model strategies, organize thinking, and solve problems independently. Perfect for small group instruction, math intervention, guided math, RTI, math centers, and independent practice. Simply print and place in a dry erase slee
Math Sorts are engaging cut & paste math activities that your students will love to complete! This bundle includes 28 print & digital math activities that cover 3rd grade place value, rounding numbers, addition & subtraction.**Purchase the bundle & save!**Each Math Sort Includes: Printable Option (labeled & unlabeled categories)Interactive Google Slides OptionAnswer KeyINCLUDED IN THIS BUNDLE: 28 Print & Digital SortsPlace Value Relationships (10 sorts)Reading & Writing 4-Digit NumbersReadi
Review 3rd grade multiplication and division with these FUN Math Mazes. Use during math stations, math homework, morning work, early finisher activities, or math test prep. > > Click PREVIEW to view more details! * Purchase the 3rd Grade Math Mazes Bundle and Save!* 7 Mazes Included:Maze 1 - Multiplication (equal groups) Maze 2 - Division (equal shares) Maze 3 - Multiplication & Division (word problems) Maze 4 - Multiplication & Division (unknown number in equation) Maze 5 - Multipl
Review 3rd Grade Multiplication & Division skills with this set of 15 engaging, cut & paste math sorting activities! Interactive Google Slides are also included. Use as morning work, math warm ups, math centers, math homework, math review, or as a quick math assessment!**Purchase the bundle & save!**Each Math Sort Includes: Printable Option (labeled & unlabeled categories)Interactive Google Slides OptionAnswer Key15 Print & Digital Math Sorts Included: Understanding Multiplication Understandin
Review 3rd Grade Addition & Subtraction skills with this set of 8 engaging, cut & paste math sorting activities! Interactive Google Slides are also included. Use as morning work, math warm ups, math centers, math homework, math review, or as a quick math assessment!**Purchase the bundle & save!**Each Math Sort Includes: Printable Option (labeled & unlabeled categories)Interactive Google Slides OptionAnswer Key8 Print & Digital Math Sorts Included: Fluently add within 1,000Fluently add within 1
Help students practice addition, subtraction, regrouping, and place value with this printable 3rd grade math mat. This reusable math support page includes workspace, visuals, and built-in notes to support students during math instruction and independent practice. • Includes a place value chart for organizing numbers • Supports addition and subtraction with regrouping• Features a number line model for problem solving • Includes open workspace for solving equations • Great for small group ins
Build strong math language with these Addition & Subtraction Math Vocabulary Posters. Each vocabulary card includes a student-friendly definition and a clear visual model to support understanding of key addition and subtraction concepts. These posters work perfectly for math word walls, anchor charts, small group instruction, and student reference tools in upper elementary classrooms. 🔹 WHAT’S INCLUDED✔ 30 addition & subtraction vocabulary words✔ Simple, student-friendly definitions✔ Cle
Help students practice multiples, skip counting, and multiplication patterns with this printable 3rd grade math mat. Students use visual math notes and open workspace to identify multiples, explain patterns, and solve problems independently. • Supports multiples and skip counting concepts • Includes a hundreds chart for finding multiples • Reinforces multiplication patterns and related facts • Features visual examples showing multiples of numbers • Provides workspace for solving problems
Review 3rd Grade Algebraic Reasoning skills with this set of 20 engaging, cut & paste math sorting activities! Interactive Google Slides are also included. Use as morning work, math warm ups, math centers, math homework, math review, or as a quick math assessment!**Purchase the bundle & save!**Each Math Sort Includes: Printable Option (labeled & unlabeled categories)Interactive Google Slides OptionAnswer Key20 Print & Digital Math Sorts Included: Identifying Properties of Multiplication Using
Build strong multiplication and division foundations with this comprehensive set of Multiplication & Division math vocabulary posters. Each term includes a simple, student-friendly definition and a clear visual model to help students understand math concepts and use precise math language with confidence. These posters are perfect for math classrooms during multiplication, division, fact fluency, properties of operations, and problem-solving units, where clear vocabulary and visual references s
Help students practice solving multi-step word problems with this printable 3rd grade math mat. Students use visual math notes and open workspace to model problems, write equations, solve step-by-step, and explain their thinking independently. • Supports multi-step problem-solving strategies• Includes visual examples for models and equations• Reinforces solving problems in the correct order • Features “Check Your Answer” reminder prompts • Provides large workspace for solving and explaining
Help students practice multiplying by multiples of 10 using models, repeated addition, and multiplication strategies with this printable 3rd grade math mat. This reusable math support page gives students structured workspace and visual support during math instruction and independent practice. • Includes visual multiplication strategy examples• Supports multiplying by multiples of 10• Features repeated addition models• Includes basic fact × 10 practice• Reinforces the distributive property•
Help students build division understanding with this printable 3rd grade math mat. Students practice equal groups, arrays, division models, and division strategies while using visual math notes and structured workspace. • Introduces division concepts in a visual way • Supports equal groups and array models• Shows different ways to interpret division problems • Includes workspace for drawing and solving equations • Reinforces division strategies with visual examples • Great for small group
Help students build multiplication understanding with this printable 3rd grade math mat. Students practice equal groups, repeated addition, number lines, and arrays while using visual math notes and structured workspace. • Introduces multiplication concepts in a visual way • Supports equal groups and array models• Reinforces repeated addition strategies• Includes number line multiplication practice• Provides reusable workspace for solving equations • Great for small group instruction and
Help students practice arithmetic patterns, pattern rules, and input/output tables with this printable 3rd grade math mat. Students use visual math notes and open workspace to identify patterns, explain rules, and solve problems independently. • Supports arithmetic patterns and pattern rules• Includes one-step and multi-step pattern examples • Reinforces input/output tables and number relationships • Features a hundreds chart and multiplication table for pattern analysis • Provides wor
Help students practice fact families, related facts, and unknown numbers in equations with this printable 3rd grade math mat. Students use visual math notes and open workspace to model equations, write related facts, and solve multiplication and division problems independently. • Supports multiplication and division fact families• Includes vocabulary visuals, array models, and a fact family house• Reinforces inverse operations and related facts • Provides reusable workspace for writing e
Help students practice strategies to fluently multiply and divide within 100 with this printable 3rd grade math mat. Students use visual math notes and open workspace to model equations, explain strategies, and solve multiplication and division problems independently. • Supports multiplication and division strategies within 100 • Includes equal groups, arrays, number lines, and related facts• Reinforces repeated addition and repeated subtraction strategies • Features multiplication prope
Help students practice division as an unknown factor problem with this printable 3rd grade math mat. Students use visual math notes and reusable workspace to solve equations with missing quotients, divisors, and dividends while connecting multiplication and division relationships. • Supports unknown factor equations and inverse operations • Includes examples for missing quotient, missing divisor, and missing dividend problems • Reinforces multiplication and division relationships • Features
Help students practice even and odd numbers, equal groups, and division by 2 with this printable 3rd grade math mat. Students use visual math notes and open workspace to model numbers, explain their thinking, and solve problems independently. • Supports even and odd number concepts• Includes equal groups and groups of 2 models • Reinforces identifying numbers as even or odd • Features division by 2 examples with and without leftovers • Provides workspace for solving problems and explaining
Mariela Santillana is a curriculum designer and the founder of Math Tech Connections. She is a former classroom teacher who is passionate about creating engaging, standards-aligned resources for grades 1–6.
My own education history
Bachelor's in Elementary Education from the University of Central Florida
Additional biographical information
I was born in Mexico but have lived in the USA since I was two years old. According to my mom, I have always wanted to be teacher. I currently live in Florida with my husband, 3 kids, 3 dogs, and 1 rabbit.
We have a very blessed life :)
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