A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 113

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 280

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 145

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 223

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 303

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 344

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 293

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 303

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 313

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: drivers/Session_files_driver.php

Line Number: 94

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 107

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 140

Backtrace:

File: /home/u451388225/domains/teachesl.tv/public_html/index.php
Line: 292
Function: require_once

Create your ESL lesson plan -

  • Views

    440

Cesar Harada: A novel idea for cleaning up oil spills - Cesar Harada

  • VERBS: 33
  • VOCAB: 149
  • PHRASES: 0
  • PHRASAL VERBS: 0
  • TRANSCRIPT: Yes
  • LESSON PLANS CREATED: 1
Below is a list of lessons plans that have already been created for this video
2020-12-28
BY TeachESL
Vocab Match
Verbs
Transcript
Video
Discuss


Print
When TED Senior Fellow Cesar Harada heard about the devastating effects of the BP Oil spill in the Gulf of Mexico in 2010, he quit his dream job and moved to New Orleans to develop a more efficient way to soak up the oil. He designed a highly maneuverable, flexible boat capable of cleaning large tracts quickly. But rather than turn a profit, he has opted to open-source the design.

Please click here to login to create or use a lesson plan for this video