A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
因为它是线上阅读，所以是没有实体书籍的，大多数都是在线上打印出来的电子资源，打印版就是国内的祖国版本RAZ。 美国加拿大超过10，000所公立学校使用RAZ，全世界超过165个国家的近680万学生使用它。 在中国也有无数的家庭用RAZ来学英语。
三、蓝思分级阅读体系 蓝思分级阅读体系（Lexile Framework）是目前全美最具公信力和使用最广的阅读难度分级体系，由美国MetaMetircs教育公司历时15年研发而成，目的是帮助读者找到与他们的阅读能力相匹配的书籍，逐渐提高自身的阅读能力。
RAZ，要怎么读？ RAZ有29个级别，不同级别的读法还是区别很大的，我们先来看一下各个级别的AR指数和蓝思值。 AR指数和蓝思值， 是两套阅读测评体系，都是衡量阅读能力和书籍难度的指标，数值越大，说明书籍的难度就越大。
并且覆盖全球超过180多个国家，800万学生，网站的阅读量超过72亿人次（这个数字每秒都在增加）。 在中国，一流双语、国际学校也都引进RAZ作为课堂教材，比如上海包玉刚实验学校、上海协和双语国际学校等。 4. 内容丰富、包罗万象、难度螺旋上升。
RAZ分级阅读的quiz如何使用？ 鼎鼎大名的RAZ分级阅读，除了AA级别，其他级别的每篇文章都有配套的5道quiz练习题。 我家娃今年四岁多，现在是幼儿园中班。 幼儿园是普通公立幼儿园，… 显示全部 关注者 21
RAZ，全称Reading A Z，是一套广受美国学校欢迎的在线分级阅读教材。它不仅帮助孩子们从听说过渡到阅读，而且内容覆盖了常识、天文、地理、历史、童话、人文和动植物等多个领域，深受家长和孩子们的喜爱。RAZ分级阅读以其系统性、丰富性和适宜性，成为孩子们英语阅读能力提升的重要工具。 Raz ...
三、ABCtime儿童英语分级阅读 (RAZ分级读物) 1 内容复现，螺旋上升 同一内容复现但难度阶梯上升，知识点复现率高，帮助阅读者稳步提高。全文词汇数、高频词词汇与比例、低频词词汇与比例、句子长度、句子复杂度、句式、插图信息量、思想深度、主题等多个角度，将阅读体系分为A Z 26个级别 ...
就这一点，胜过所有其他的所有。 家里有小低学段孩子的，大家应该都有这个体会，有时候说破嘴皮子，血压飙到180，孩子都未必肯配合做校外补充的作业和阅读。 但是reading A Z的分级阅读，真的是孩子自己喜欢，并且会主动去看的，特别是里面故事性的部分。
RAZ自刷？蜗牛爬坡！ 我们正式开始接触RAZ，是在孩子二年级的时候。当时是听一个启蒙做得比较好的妈妈说的，了解英语分级阅读的概念，知道原版阅读的学习模式，原版娃的英语学习成果让我很心动，于是我就开始带着孩子，自己在家里刷刷刷。 我们自己刷的流程是这样的：听→对照翻译理解→ ...
RAZ RAZ是 分级阅读中的单词王。从aa，以及a z共有27级。 RAZ构建了一套完整的知识体系，题材丰富就像一套由易到难的儿童百科全书。在这套书里，你可以找到《三只小猪》、《小红帽》这样的经典故事，也能收获有关历史、科学、自然、地理的知识 它的主要特点是 单词量非常丰富， 词汇都是高频 ...
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