Give $20/month and provide 480 hours of free education
Hi ,
Hope all is well. Summer is right around the corner, and the Khan Academy team is excited to spend the next few months growing our library of content and improving our site before the start of the next school year. With everything on our site being entirely free, we depend on contributions from people like you to make this possible.
$20/month can help us provide 480 hours of free education over the next year.
$10/month $30/month Other monthly amount One-time gift
Your monthly support will help us plan for the future and ensure that we have a base of consistent and loyal supporters that we can count on to help us build the best educational experience we can.
Many of our users don’t have the means to make a donation, so if you’ve found value in Khan Academy and are able to pitch in to keep it free and help us grow, please make a small monthly gift today. Your support will go a long way in providing students everywhere with access to a free education in the coming school year and beyond.
Thank you,
Sal Khan
Founder, Khan Academy
For free, for everyone, forever.
PO Box 1630, Mountain View, CA 94042 | Our Privacy Policy
If you'd prefer not to receive these types of emails from me, unsubscribe here.
P.S. Khan Academy is a registered 501(c)(3) nonprofit organization, and your donation will be tax-deductible to the fullest extent allowed by law. You’ll also receive the 2015 Patron Badge for donating. Support free education with a monthly gift today!
Give $20/month and provide 480 hours of free education的更多相关文章
- INTERVAL YEAR TO MONTH数据类型
INTERVAL YEAR TO MONTH数据类型 Oracle语法: INTERVAL 'integer [- integer]' {YEAR | MONTH} [(precision)][TO ...
- extjs4 分页工具栏pagingtoolbar的每页显示数据combobox下拉框
var itemsPerPage = 20; var combo; //创建数据源store Ext.define('recordStore', { extend : 'Ext.data.Store' ...
- 50+ Useful Docker Tools
As containers take root, dozens of tools have sprung up to support them. Check out your options for ...
- 李宏毅机器学习课程笔记-2.5线性回归Python实战
本文为作者学习李宏毅机器学习课程时参照样例完成homework1的记录. 任务描述(Task Description) 现在有某地空气质量的观测数据,请使用线性回归拟合数据,预测PM2.5. 数据集描 ...
- 李宏毅机器学习笔记——新手感悟——PM2.5作业
python也不会,计算机也不会,啥都不会,只带了个脑子考了计算机研究生.研究生选了人工智能方向.看来注定是漫长的学习之旅. PM2.5作业,我是一个字都看不懂.所以我采用了直接看答案的方案.把答案看 ...
- Monthly Income Report – August 2016
原文链接:https://marcoschwartz.com/monthly-income-report-august-2016/ Every month, I publish a report of ...
- SQL Azure (15) SQL Azure 新的规格
<Windows Azure Platform 系列文章目录> 在以前的文章中,笔者给大家介绍了Microsoft Azure SQL Database (以前被称为SQL Azure)的 ...
- --自动创建备份SQL
--自动创建备份SQL DECLARE @dbname VARCHAR(50) ,--要备份的数据库名称 @bakname VARCHAR(50) ,--备份后的bat名称 @sql VARCHAR( ...
- 从一个复杂的json格式的String内获取某key的值
如题,如何简单的从一个复杂的String格式内获取某个key的值. 例如:从下面String下取到status的值. {"response":{"info":{ ...
随机推荐
- HTML第三讲(选择符)
本次课程讲CSS中的选择符 1.基本选择符 基本选择符有三个 1.标记名选择符 所谓的标记名选择符就是直接在样式中使用标记名定义,譬如以下代码: (此种选择符的特点是所有相同的标记名可以同时定义不需要 ...
- php 面试一般都遇到什么问题
大型互联网公司会从几个方面来考核:第一:专业上,专业分为五个方向,操作系统,网络,算法,语言,数据库,一般情况下,会比较在乎Linux系统的日常使用,包括shell脚本,比较深入的话,会问kernel ...
- centos7 安装 elasticsearch
安装java环境 这里使用yum方式安装,前提是必须有网络 yum install java-1.8.0-openjdk 安装完成,查看java版本 [root@localhost ~]# java ...
- xlrd库的使用
- [转]Java IDE 之 IntelliJ IDEA 2017
参考链接1:http://blog.csdn.net/u012364631/article/details/47682011 IDEA Community(社区版) 使用Maven创建Web工程 并部 ...
- uva-10785-模拟水题
模拟题: 1• The name has a predefined length N.名字长度N2• The vowel value and consonant value of the name m ...
- c# 类间关系
一.依赖关系 简单的理解,依赖就是一个类A使用到了另一个类B,而这种使用关系是具有偶然性的.临时性的.非常弱的,但是类B的变化会影响到类A.比如某人要过河,需要借用一条船,此时人与船之间的关 ...
- Creating Self-Signed SSL Certificates
http://weblogic-wonders.com/weblogic/2011/05/25/ssl-configuration-for-weblogic-server/ http://m-butt ...
- 实现HBase增量入库(HBase删除自定义时间戳行数据)
目录 1. 背景描述 2. 问题描述 3. 解决方案 1. 背景描述 目前在做音乐推荐项目,前期做排序模型优化,任务是使用模型对用户的历史音乐进行排序,有6800多万个用户,约40G的用户数据,使用H ...
- 在Spring使用junit注解进行单元测试
在Spring中可以使用junit配合注解进行单元测试 一.常用注解 1.@RunWith(SpringJUnit4ClassRunner.class),让测试运行于spring测试环境2.@Cont ...