Category Archives: bilingual education

pyramid with character at the bottom

Learn statistics and history, in English or Spanish


CCSS.MATH.CONTENT 5.NF.A.2 Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. 

CCSS.MATH.CONTENT.6.SP.5.c. Calculating quantitative measures of center (median and/or mean) and variability (interquartile range and/or mean absolute deviation).

CCSS.MATH.CONTENT.7.EE.3 Solve multi-step real-life and mathematical problems posed with rational numbers in any form (positive and negative, fractions, decimals, and integers).

CCSS.ELA-LITERACY.RH.6-8.4 Determine the meaning of words and phrases as they are used in a text, including vocabulary specific to domains related to history/social studies.

📲 Technology Required

Students will need access to a computer or iPad.

⏰ Time Required

30-45 minutes

📃 Summary

This lesson includes game-based instruction and assessment.

Click here for the AZTECH: THE BEGINNING TEACHERS GUIDE with answers to all math and vocabulary questions, game play ‘cheat sheet’ and everything else you need to know.


Play a game (yes, it’s free)

  1. Assign students to play AzTech: The Beginning. The link to play the game online can be found here. It can also be downloaded from the App Store here.
  2. Students register with a username and password, then play the game, in English or Spanish. You can have students register and select their own, or provide usernames and passwords you wish them to use, for example, an existing school login.
  3. Each math problem has an EXPLAIN button that students can click to get an explanation of how to solve the problem. Some also have a hint, which is a short suggestion of how to go about solving it. For example, “Subtract the number of days you did not have homework, from the total number of days. Give the answer as a fraction of the total.”
Math problem with hint button

We recommend encouraging students to read the EXPLAIN and any HINT buttons before asking the teacher for help.

4. If students miss a problem twice in a row, they are routed to a LEARN MORE page and need to select an option, which may be a video, web page with voice over or matching terms, to learn more.


Students get immediate feedback on right or wrong answers. Assuming students are playing online, results of in-game math challenges are recorded to a database which teachers can access. Access to reports can be found here.

Differentiated Instruction

Students who finish ahead of the class can continue the story in AzTech: Meet the Maya, available for the web and also in the Apple App Store for iPads.

Students who are not yet at the sixth-grade level in mathematics and who could benefit from a bilingual game can play Making Camp Bilingual, which address third- and fourth-grade math standards. It is available here for access from the web and in the Apple App Store and Google Play store .

Related lessons

Teaching statistics in classrooms with English learners AND Native speakers.


The Codex in Latin American History and Math


CCSS.ELA-LITERACY.RH.6-8.2 Determine the central ideas or information of a primary or secondary source; provide an accurate summary of the source distinct from prior knowledge or opinions.

CCSS.MATH.CONTENT.6.RP.A.3 Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations

CCSS.ELA-LITERACY.W.7.1 Write arguments to support claims with clear reasons and relevant evidence.

Technology required

Device with a browser for AzTech Game. Printer for printing codex and related worksheet and activity pages.


4-5 hours

Lesson Summary

This is an augmentation of a lesson from the Library of Congress uses a primary source – the Huexotzinco Codex – as a basis for document analysis, inquiry and applied mathematics. Students analyze pages documenting tribute paid to Spanish administrators, compute the tribute paid, read a one-page overview of the codex and analyze the codex. A presentation is given on connections between Aztec, Mayan and contemporary methods. Students begin or end classes playing a game that includes Mayan history and middle school mathematics.


First, some background for the teacher. The Huexotzinco Codex was part of the evidence in a case brought by the Nahuas, Indigenous people of what is now Mexico, against the Spanish administrators, alleging excessive taxation (tribute). This case was won by the Nahuas. In this lesson, students do not learn the full story until the third or fourth class period.

Analyze Documents

Begin with this link to the Library of Congress lesson, “The Huexotzinco Codex”, and have students complete Activity 1, Document Analysis. This should take one class period- approximately one hour.

NOTE TO THE TEACHER: Allow at least 30 minutes before using this lesson the first time, to read through the Library of Congress lesson, download and print out documents for students.

Play a game

Have students sign in and begin the game, AzTech: Meet the Maya. Students should play for about 15 minutes.

Computation – How much was the tribute?

Continue with the second part of Library of Congress lesson, “The Huexotzinco Codex”, and have students complete Activity 2, Computation. After students have completed one tribute sheet and corrected their answers, use this slide presentation to show the connection between the Aztec and Maya codices and our modern system of numbers and graphs. Optionally, have students complete one or two more tribute sheets from the linked lesson. This should take one to two class periods.

Play a Game

At the beginning of class, have students continue the AzTech: Meet the Maya game. Students should play for 15-20 minutes by which time some of the students should have reached the codex activity and explanation in the game.

Write a Narrative Explanation

Continue with the third part of Library of Congress lesson, “The Huexotzinco Codex”, and have students complete Activity 3, Narrative Explanation.


Four types of assessments are included; observation of student understanding of historical document analysis in the class discussion, student self-corrected math computation, student written assignments (analysis sheet, observations and scenario outlines) and the math problems in the AzTech game which are scored automatically with data available in teacher reports.

Differentiated instruction (optional)

Advanced Students who complete their assignments early can continue with the AzTech: Meet the Maya game. If they complete this game, they can choose to play AzTech: The Story Begins or AzTech: Empiric Empire.

English learners can play the AzTech : Meet the Maya and AzTech: The Beginning games in English or Spanish.

Recommended Related Lesson

Counting ropes and rational numbers