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Compton's Interactive Encyclopedia

The most complete reference source for students and adults--3 encyclopedias in one (Elementary, Student, Adult).
Britannica's Ultimate Reference Suite with student features..
100,000+ authoritative and richly illustrated articles.
166,000+ Web links and biographies, dictionaries and thesauri, timelines, and interactive multimedia.
Thousands of new engaging videos, photos, audio clips, magazine and Web links to keep students interested and motivated to learn.
Hundreds of interactive study guides, exercises, and learning games designed to help students understand math, social studies, and science concepts.
Comprehensive Homework Help--interactive lessons & "How to" documents to help students excel in school.
also includes Britannica Test Prep--improve your ACT & SAT scores.

4 laminated quick reference math guides covering: trigonometry, geometry, power math, differential equations.
This bundle contains 4 high school math guides covering: Power Math Tips, Geometry, Trigonometry and Differential Equations.
Great for home schooling and anyone needing math study aid in these subjects..
Easy-to-read layout to promote faster learning and memory retention..

...pportunities for introducing children to scientific inquiry, investigation, and experimentation. Inquiry-based lessons challenge young learners as they build, investigate, problem-solve, discuss, and evaluate scientific and design principles in action..
EXPERIMENT GUIDE – Once a ride is built, an activity booklet guides learners through three hands-on, inquiry-based experiments. This experiment guide aligns with the national STEM standards and is designed for grades 5‒9. Students will learn about the relationships between time, distance, speed, and more!.
PROMOTES TEAMWORK – This educational engineering set is more fun when constructed with friends. One to three kids can put their heads together and figure out the structure, exchanging ideas as they tinker with the bits and parts, and solving the model faster through teamwork. They’ll build camaraderie and develop social skills as they play..
STEAMagination: It’s the connection of STEAM (science, technology, engineering, arts & math) with a child’s natural curiosity and creativity and it powers the fun of each and every K’NEX building set. Building with K’NEX puts children on a path towards a fundamental understanding of STEAM/STEM subjects..

...ansmit voice of who speak to the microphone of transmitter to the ones who wear earphone of receivers,transmission distance is about 50-60 meters (164-197ft).99 frequency channels on 195MHz-230MHz means it has 99 select IDs allow at least 40 groups to work simultaneously.Widely used for field trip,tour exhibit guides,sermon interpretation,work-study,conferences,translation,audio visual laboratory,events for church,family,restaurants,hajj....
Transmitter weighs 56g and receiver weighs 46g,Small and light for carry or carriage.High S/N Ratio(≥90dB) ensure cleanest voice transmission. Long-Lasting Power,both transmitter and receivers are built-in 900mAh lithium upgraded battery to guarantee more than 18 hours working.One transmitter could pair up countless receivers as long as they are on the same frequency.Transmitter has 3.5mm input jack, it supports AUX( such as MP3, Smartphone,MP4,CD etc) and MIC (microphone )input..
The wire of microphone and earphone has antenna function, please do unfold the wire of the microphone and earphone to enhance the voice signal transmission. On each group, transmitter and receivers should be set on the same frequency Channel ID,for example, Group A: transmitter A is set on Channel ID 05, so receivers A should be se....

Score higher in CompTIA certification exams: Security+ SY0-401, Network+ N10-005, A+ 220-801 and A+ 220-802..
Study Questions, Flashcards and Practice Tests by Darrill Gibson, author of top selling CompTIA exam prep study guides..
1500+ practice questions to help you assess your exam readiness..
2000+ flashcards to help you review important testable concepts..

...NEX building set. Building with K’NEX puts children on a path towards a fundamental understanding of STEAM/STEM subjects..
LESSON PLANS AND EXPERIMENTS: All K’NEX Education sets come with either a comprehensive guide for teachers or an experiment guide for student-led learning. All lesson plans and experiment guides are written by expert educators and feature hands-on, inquiry-based projects that engage students in today’s busy classroom..
ALIGNED TO NATIONAL STANDARDS: K’NEX Education teacher guides and experiment guides are aligned to national educational standards, including ITEEA, NSES, NCTM, NGSS and Common Core..
REAL WORLD LEARNING: Study after study reveals that students have more success learning STEM subjects through activities related to the real world rather than reading about abstract concepts in textbooks. K’NEX Education sets allow students to build replicas of real-world machines and contraptions and through the lesson plans and experiments, gain a concrete understanding of the principles that make them work..