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Ontario High School
24 Hour Attendance Line

(909) 460-5832

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The Common Core State Standards Overview



Click here to view OHS WASC information

Final Exam Schedule

Grades 9-11 Finals Schedule

  May 19th May 20th May 21st
7:30-9:30 Period 6 Period 5 Period 4
9:30-9:43 Brunch Brunch Brunch
9:50-11:50 Period 3 Period 2 Period 1


Grade 12 Finals Schedule

May 11th & May 12th Periods 6 & 3 Reg Bell Schedule
May 13th & May 14th Periods 5 & 2 Reg Bell Schedule
May 15th & May 18th Periods 4 & 1 Reg Bell Schedule


Click here for AP Exam Schedule
Click here for Senior Events


All Ontario High School students will graduate ready for college and careers.

Hello Jaguar Family!

Spring break is around the corner and our students will be taking several assessments/tests in March, April, and May. Many events such as prom and graduation are also upcoming!

Testing information:

March 17 and 18: Our 10th grade students will take the CAHSEE (California High School Exit Exam)

April SBAC (Smarter Balanced Assessment Consortium) - All 11th grade students will take this exam and will be taken on a computer. Our students use computers in our new building on a daily basis and will be well prepared!
Exam Schedule:

April 7th 10th Grade Life Science (paper and pencil exam)
April 22 & 23 11th Grade - SBAC Computer Adaptive
April 27 SBAC Classroom Activity
April 28 & 29

SBAC performance Task

May - Advanced Placement (AP) tests - students taking these exams will have the opportunity to earn college credit should they earn a 3,4, or 5 on the exam.

Please remember that we have tutoring after school, Monday-Thursday and our library is open from 2:30-5:00 p.m. Monday-Thursday.

We are proud of our students' hard work and I know that our teachers are properly preparing our students for their exams.

It is an honor to serve our students and our community!


Mr. Zaldivar

Go Jags!

Week At A Glance


Apply Online for Meal Benefits

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Try a new and convenient way to apply for Free and Reduced Meal Benefits online. It's fast, easy and confidential. 

Perfect Attendance Monthly Drawings

In addition to the grand perfect attendance celebration hosted by Mark Christopher on May 13, 2015, we are happy to announce that we will have additional opportunities for our students to win prizes for perfect attendance throughout the year!


If students do not make it one month, there’s always an opportunity the following month to be in the giveaway. Official “Cool to Stay in School” rules & regulations apply.  Winner must be present to receive their prize when announced at the monthly drawing


Drawing Date Attendance Date Ranges
September 5, 2014 August 18th - August 29th, 2014
October 3, 2014 September 2nd - September 30th, 2014
November 7, 2014 October 1st - October 31st, 2014
December 5, 2014 November 3rd - November 21st, 2014
January 9, 2015 December 1st - December 18th, 2014
February 6, 2015 January 5th - January 30th, 2015
March 6, 2015 February 2nd - February 27th, 2015
April 3, 2015 March 2nd - March 31st, 2015
May 8, 2015 April 1st - April 30th, 2015


It's Cool to Stay in School

Mark Christopher Auto Center
"It's Cool to Stay in School"
Perfect Attendance Car Give-Away!


For the 2014-2015 school year, students at Ontario High School and Alta Loma High School will be eligible for a chance to WIN a new Chevrolet Cruz, all they have to do is have PERFECT ATTENDANCE for the school year.

See below for more information:


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Ontario High School would like to give Mark Christopher a special thanks for all of their support!


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Go Jaguars!


Mr. Zaldivar, Principal

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2014/15 RISE Schedule

September 13, 2014
September 27, 2014
October 11, 2014
October 25, 2014
November 1, 2014
November 15, 2014
December 6, 2014
December 13, 2014
January 31, 2015
February 21, 2015
February 28, 2015
March 7, 2015 (Tentative)
March 14, 2015 (CAHSEE Day)
April 4, 2015
April 18, 2015
May 9, 2015
May 16, 2015

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OHS News

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Dream Act

School Accountability Report Card

2013-2014 - English
2013-2014 - Spanish

A hard copy of our SARC Report is available in the main office.

Hey Ontario.....


The Chaffey Joint Union High School District has partnered with School Loop. School Loop is an innovative communication tool designed to keep parents, students, teachers and staff connected. With School Loop parents and students can:

  •  Check assignments online
  •  Monitor current grades
  •  Email teachers/counselors
  •  View school news/events
  •  Submit work electronically

Every Chaffey District parent and student is encouraged to register. It takes less than two minutes to sign up and all accounts are FREE! Click the 'Register Now' tab on the top left of this page.